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Tyler Robinson convicted of homicide?
44%
Agent
48%
Market Price
-4.5%
Edge
52%
Confidence
309,810
Volume
3.0c
Spread
127
Days to resolution
1
Markets in event
final rationale
Conditional on a judgment being entered, conviction is near-certain (confession video, engraved-bullet/motive evidence, no competency or insanity defense reported), so the binding uncertainty is whether a verdict or completed guilty plea occurs by July 31, 2027. As of late August 2026 the case is still at bind-over with no plea and no trial date, and Utah capital litigation (death-penalty notice fights, evidence-admissibility motions, jury-selection procedures after the contempt issue, one prior continuance) routinely stretches beyond 22 months from charging. Offsetting factors — extraordinary political salience creating pressure to expedite, prosecutors publicly pushing for a straightforward bind-over, and the meaningful chance of a late guilty plea to avoid execution risk (which would resolve Yes) — keep this close to a coin flip rather than clearly negative. Polymarket's 48.5% is the only cross-market anchor and its recent 8.5pp softening reflects delay risk, not acquittal belief; I shade a few points below it for compounding continuance evidence and resolution-date ambiguity.
price vs. prediction
market price
agent forecast at t+0
58 follow-ups
re-scan context
| date | predicted | market price | confidence |
|---|---|---|---|
| 2026-08-18 | 42% | 46% | 47% |
| 2026-08-08 | 30% | 40% | 38% |
1. Planner Opus 5
Tools chosen:
polymarket_direct
polymarket_related
kalshi_related
claude_news
gdelt_news
wikipedia
code_execution
Sub-questions (Fermi decomposition)
- What is the current Polymarket price and recent price trend for 'Tyler Robinson convicted of homicide?'
- What is the current procedural posture and scheduled trial date in STATE OF UTAH v. TYLER JAMES ROBINSON, and is a verdict plausible before July 31, 2027?
- Is there reporting of plea negotiations, and would any likely plea involve an admission of guilt (guilty plea) versus a no-contest/Alford plea or a plea to a non-homicide charge?
- How strong is the publicly reported evidence (DNA, confession texts, surveillance, family testimony) and has the defense signaled an insanity/competency defense?
- What is the base rate of conviction (including guilty pleas) in US state capital/aggravated murder prosecutions, and the base rate of acquittal or mistrial?
- Have there been any rulings on death-penalty notice, competency evaluations, venue change, or continuances that could push the trial past mid-2027?
- Do other prediction markets (Kalshi, other Polymarket variants) price the same or related questions differently?
Planner reasoning
This is a legal-outcome question hinging on whether Utah's capital murder prosecution of Tyler Robinson yields a homicide conviction (trial verdict or guilty plea) before July 31, 2027. Key drivers are the trial schedule, plea-deal negotiations (a plea WITH admission of guilt counts as Yes; a no-contest/Alford-style plea without admission resolves No), and defense strategies (insanity, competency). The Polymarket price is the primary anchor; news search plus base rates on murder conviction rates fill in the rest.
2. Research
| tool | status | time | items | summary |
|---|---|---|---|---|
| polymarket_direct | OK | 0.3s | 1 | ## This Market's Polymarket Data **Tyler Robinson convicted of homicide?** - Current price (probability): 48.50% - 7-day price change: -8.50% - 30-day price change: +0.50% - Total volume: $309,810 (USD notional) - Price range: 33.00% - 57.00% - Data points: 69 days |
| polymarket_related | OK | 2.0s | 0 | Scanned 100 active Polymarket markets, kept 0 matches. keyword 'Tyler Robinson': 0 markets | keyword 'Charlie Kirk': 0 markets | keyword 'death penalty': 0 markets |
| kalshi_related | OK | 1.8s | 1 | 1 related markets / summaries. keyword 'Tyler Robinson': no matches | keyword 'Charlie Kirk': ok | keyword 'convicted': no matches |
| claude_news | OK | 24.5s | 10 | Based on research into *State of Utah v. Tyler James Robinson*: - **Preliminary hearing held July 6–10, 2026** (delayed from original May 18 date) at Fourth District Court in Provo. Judge Tony Graf found the continuance "reasonable and necessary to safeguard" Robinson's right to effective counseli |
| gdelt_news | OK | 161.2s | 20 | GDELT: 20 articles across 3 queries (lookback=60d). 'Tyler Robinson Utah trial date': error HTTPSConnectionPool(host='api.gdeltproject.org', port=443): Max retries exceeded with url: /api/v2/doc/doc?query=%28tyler+OR+robinson+OR+utah+OR+trial+OR+date%29+sourcelang%3Aenglish&mode=ArtList&format=json& |
| wikipedia | OK | 0.1s | 3 | Fetched 3 Wikipedia entries (0 missing pages). |
| code_execution | OK | 44.0s | 0 | **Decision tree structure:** `P(convicted by 7/31/2027) = R × [p_plea × q_admit × 1.0 + (1−p_plea) × c_trial]` - **R** = P(case reaches a verdict or completed plea before deadline) — the key uncertainty for a Sept 2025-charged, high-profile capital case with only ~22 months of runway (capital trials |
3. Evidence Brief Sonnet, 6574 chars
# Current state
Tyler Robinson faces aggravated murder and related charges in Utah state court for the killing of Charlie Kirk; as of late August 2026 he has NOT entered a plea, no trial date has been set, and the case is still at the bind-over stage (probable-cause ruling was heard/expected Sept 1, 2026). The death-penalty notice remains contested but intact. Resolution requires an actual judgment (conviction) by July 31, 2027 — a plea without guilt-admission, dismissal, or mistrial-without-retrial-verdict resolves "No."
# Timeline of key events
- 2025-09-10 — Charlie Kirk shot and killed at UVU; Robinson surrenders 2025-09-11 (confirmed, Wikipedia).
- 2025-09-16 — Robinson charged with aggravated murder; death penalty announced (confirmed, Wikipedia).
- 2026-05-18 (orig.) → delayed to 2026-07-06/10 — Preliminary hearing held at Fourth District Court, Provo; confession video shown; continuance granted for defense evidence review (confirmed, KSL, TMZ).
- 2026-07-29 — Prosecutors push court to force case toward trial, call bind-over "straightforward" (confirmed, Fox News).
- 2026-08-11 — Defense written bind-over argument due (reported, ABC News).
- 2026-08-12 — No plea entered yet (reported, RedState).
- 2026-08-19 — Prosecutors reveal bullet-engraving/political-motive evidence; push for trial on all charges (reported, Fox News/multiple).
- 2026-08-25 — Defense seeks camera ban ahead of Sept 1 hearing (reported, Fox News).
- 2026-09-01 — Scheduled bind-over probable-cause hearing (confirmed scheduled, Utah County Attorney).
- No trial date set as of latest research (confirmed, Courthouse News, late Aug 2026).
# Event
Will Tyler Robinson be convicted of any criminal homicide offense in State of Utah v. Tyler James Robinson by July 31, 2027?
# Outcomes to forecast
Yes / No
# Kalshi market anchor
No direct Kalshi ticker found for this event (kalshi_related search returned no match for "Tyler Robinson" or "convicted"; only an unrelated Kirk Cousins NFL market surfaced). Polymarket is the best available cross-market anchor: current price 48.5% YES, down 8.5pp over 7 days, roughly flat (+0.5pp) over 30 days, range 33–57% over 69 days, $309.8K volume — indicating meaningful two-sided uncertainty and some recent softening on conviction-by-deadline.
# Sub-question answers
1. **Polymarket price/trend** — 48.5% current, -8.5% (7d), +0.5% (30d); range 33-57% [polymarket_direct].
2. **Procedural posture/trial timing** — Still pre-trial: bind-over ruling expected Sept 1, 2026; no plea entered; no trial date set as of late Aug 2026 [claude_news, Courthouse News]. Given capital-case complexity (death-penalty litigation, evidence volume), a verdict before July 2027 is uncertain but not implausible given ~11 more months of runway after bind-over.
3. **Plea negotiations** — No plea entered as of Aug 2026; no reporting of negotiations toward a plea deal [RedState]. Base-rate models assume ~70% of capital cases eventually resolve via plea, but no case-specific signal yet.
4. **Evidence strength / insanity defense** — Confession video shown at prelim hearing, bullet engraving/political-motive evidence revealed, witness/family testimony expected [TMZ, Fox News]. No competency/insanity defense reported; defense focus is on death-penalty aggravator/evidence-admissibility challenges (bullet trajectory argument) [claude_news].
5. **Base rates** — US murder trial conviction rate ~90-95%; ~70% of capital cases resolve by plea historically [code_execution model]. Acquittal/mistrial rates in capital murder cases are low but non-trivial given complexity.
6. **Death penalty notice / continuances** — Death penalty notice contested but upheld; contempt finding against a prosecutor addressed via jury-selection procedures, not case delay; preliminary hearing already delayed once (May→July 2026) for defense evidence review [Courthouse News, KSL]. No trial date set; further continuances plausible given capital-case complexity.
7. **Other markets** — No matching Kalshi market found; Polymarket variant scan returned zero related markets beyond the primary one.
# Key facts (high-confidence, factual)
1. [Wikipedia] Kirk shot 2025-09-10; Robinson surrendered 2025-09-11; charged 2025-09-16 with aggravated murder, death penalty sought.
2. [claude_news/KSL] Preliminary hearing held July 6-10, 2026 after delay; confession video presented.
3. [claude_news/Courthouse News] No trial date set as of late Aug 2026; bind-over ruling pending Sept 1, 2026.
4. [claude_news] Death penalty notice remains intact despite defense motions to strike.
5. [claude_news] No plea entered as of mid-Aug 2026; no competency/insanity defense reported.
# Cross-market signals
- Kalshi related: no matching or comparable market found.
- Polymarket: 48.5% YES, volatile (33-57% range), recent downward drift suggests growing perceived risk of non-resolution by deadline (delay risk) rather than acquittal belief.
- Sportsbook implied: none available.
# Analyst opinions and speculation
- [code_execution model] Conditional on the case reaching a verdict/plea by deadline, conviction is near-certain (~87-90%), but overall probability is dominated by "R" — whether resolution (verdict or completed guilty plea) occurs before July 31, 2027. Base-case model estimate: ~48% (range 27-71% across plausible parameter grid), median ~48%.
- Capital cases historically take 2-4+ years to reach trial; case charged Sept 2025 gives ~22 months to the July 2027 deadline — tight but not impossible if bind-over/pretrial motions resolve efficiently in fall 2026.
# Directional lean per outcome
- **Yes**: Strong publicly reported evidence (confession, forensic/motive evidence) implies high conviction probability if case reaches judgment; prosecutors pushing aggressively for trial.
- **No**: No trial date set, no plea entered, death-penalty litigation and pretrial motions could extend timeline past July 2027; even a mistrial without retrial verdict resolves No; Alford/no-contest plea also resolves No.
# Gaps / unknowns
- No confirmed trial date; unclear if case can conclude (verdict or full guilty plea) before July 31, 2027.
- No Kalshi-specific price found for direct comparison/arbitrage.
- Unknown whether Sept 1, 2026 bind-over hearing outcome accelerates or further delays proceedings.
# Calibration anchors
- Polymarket YES price: 48.5% (primary cross-market anchor, no Kalshi ticker found).
- Model-based base case: ~48% (range 27-71%) reflecting dominant "timing/resolution-by-deadline" uncertainty over conviction-given-resolution certainty (~90%).
4. Forecasters Opus 5 + GPT-5.6 Sol, in parallel
claude-opus-5
44% conf
| Yes | 42% |
| No | 58% |
Conditional on the case reaching judgment, conviction is near-certain given the confession video, bullet-engraving/motive evidence and no reported insanity defense (~90%); the binding constraint is timing. As of late Aug 2026 the case is still at bind-over, no plea entered and no trial date set, and capital cases with death-penalty litigation routinely run 2-4 years, making a verdict before the deadline genuinely uncertain. Polymarket's 48.5% YES (down 8.5pp over 7 days, 33-57% range) is the only cross-market anchor and reflects that delay risk rather than acquittal belief. I shade slightly below the 48.5% anchor because of the recent downward drift, ongoing continuance risk, and ambiguity in the market's close date (2026-12-31) which, if it implied an earlier deadline than July 2027, would sharply reduce YES.
gpt-5.6-sol
59% conf
| Yes | 48% |
| No | 52% |
The 48.5% Polymarket YES price is the best available consensus anchor, as no direct Kalshi market exists. The confession video, motive evidence, and high murder-conviction base rate point strongly toward Yes if a judgment occurs by the deadline, while the absence of a reported competency or insanity defense reinforces that assessment. However, the case remains at bind-over with no plea or trial date, and capital-case litigation makes resolution by July 31, 2027 the dominant uncertainty. With no case-specific evidence of an imminent plea and recent market softening likely reflecting delay risk, I remain essentially at the market anchor with a slight lean toward No.
5. Devil's Advocate Sonnet
1. **Critical unresolved discrepancy on the resolution deadline**: The brief's stated CLOSE TIME is 2026-12-31, but the actual question requires conviction "by July 31, 2027." Forecast 1 flags this ambiguity but doesn't act on it or adjust probability accordingly; Forecast 2 doesn't even mention it, despite it being a first-order issue that could nearly halve the available runway and thus significantly cut P(Yes).
2. **Over-reliance on Polymarket as a like-for-like anchor**: Both forecasters anchor tightly to the 48.5% Polymarket price without verifying its exact resolution date matches the July 2027 deadline used in this question — if Polymarket's contract closes earlier (e.g., year-end 2026), it is not a valid direct anchor and both are importing a mismatched reference class.
3. **Plea-deal dynamics underexplored**: The brief notes ~70% of capital cases resolve via plea historically, and that a guilty plea (not just trial verdict) would count as a conviction, but neither forecaster models the probability or timing of a plea specifically — especially the well-known pattern where capital defendants plead guilty close to trial to avoid execution risk, which could meaningfully raise P(Yes) within the window even without a completed trial.
4. **Political salience as an accelerant not credited**: Given the extraordinary political profile of the Kirk assassination, prosecutors/courts may be under unusual pressure to expedite proceedings relative to typical capital-case base rates (2-4 years), a case-specific factor that could shift timing meaningfully faster than the generic base rate both forecasts lean on.
5. **Insufficient weight on tail/delay scenarios**: Neither forecast substantively engages with concrete anecdotes of delay already occurring (preliminary hearing postponed once, contempt finding against a prosecutor, ongoing death-penalty-notice litigation, camera-ban disputes) as compounding evidence that further continuances are likely, which could justify a lower P(Yes) than the ~42-48% both settled on.
6. **Convergence without justified narrowing**: The model's own base case shows a wide 27-71% range reflecting genuine uncertainty, yet both forecasts cluster within a narrow 42-48% band near the midpoint — this convergence isn't well justified given the brief's explicit acknowledgment of high volatility (33-57% Polymarket range) and unresolved procedural unknowns.
6. Aggregator Opus 5
44%
(52% confidence)
Yes: 44%
No: 56%
Conditional on a judgment being entered, conviction is near-certain (confession video, engraved-bullet/motive evidence, no competency or insanity defense reported), so the binding uncertainty is whether a verdict or completed guilty plea occurs by July 31, 2027. As of late August 2026 the case is still at bind-over with no plea and no trial date, and Utah capital litigation (death-penalty notice fights, evidence-admissibility motions, jury-selection procedures after the contempt issue, one prior continuance) routinely stretches beyond 22 months from charging. Offsetting factors — extraordinary political salience creating pressure to expedite, prosecutors publicly pushing for a straightforward bind-over, and the meaningful chance of a late guilty plea to avoid execution risk (which would resolve Yes) — keep this close to a coin flip rather than clearly negative. Polymarket's 48.5% is the only cross-market anchor and its recent 8.5pp softening reflects delay risk, not acquittal belief; I shade a few points below it for compounding continuance evidence and resolution-date ambiguity.
Pipeline Timing
Total pipeline time: 248.7s
Per-tool research timings shown in the Research section above.