← Tyler Robinson
Mirandizing of Tyler Robinson
Key finding: Tyler Robinson was Mirandized at 6:25 PM on September 11, 2025 — not September 12. This is established by four independent lines of reasoning from the court documents.
What Happened — Verbatim Court Record
Source: Defense motion filed March 30, 2026 (3_30_26), Bates 003996-R2, video timestamp 03:36:53.
6:25 PM, September 11, 2025 — Law enforcement officer begins Miranda reading:
"So Tyler, um, before we begin, I'm just gonna read you your rights. Mm-hmm. Okay. Um, you have the right to remain silent. Anything you say can be used against you in court. You have the right to talk to a lawyer before advice before we ask you any questions. You have the right to have a lawyer with you during questioning. If you cannot afford a lawyer, one will be appointed for you before any questioning begins. And if you decide to answer questions now, you can stop at any time. Okay. Um, so are you, are you good to proceed? I'd love to talk to you."
Robinson acknowledged each right with an affirmative response.
6:26 PM — Robinson invoked his right to counsel (video timestamp 03:37:38):
"Uh, I would like to speak with my, uh, legal counsel. I'm hoping for a fellow in Utah named Doug Terry."
6:26 PM — Robinson invoked his right to remain silent (video timestamp 03:37:52):
"But, uh, until I've had the opportunity to speak with someone, I would like to remain silent."
No questioning occurred. Robinson waited with his parents, uncuffed, given water, for approximately 2.5 hours while lead investigators drove from Utah County (~3.25–4 hours away).
Legal Question: September 11 or September 12?
Some sources assert the Mirandizing occurred on September 12. The court documents establish it was September 11. Four independent lines of reasoning:
Reason 1 — The Defense's Own Admission
Defense motion 3_30_26 (lines 541–547) explicitly states Robinson surrendered to law enforcement "on the late evening of September 11, 2025." This is an admission in a signed court filing by Robinson's own defense counsel — not a prosecution assertion. No competent defense attorney would misplace their client's surrender date in a court filing.
Reason 2 — The Arrest Timeline Makes September 12 Impossible
The official arrest was at 4:00 AM on September 12 (Utah County booking sheet; Probable Cause Affidavit). A 6:25 PM Mirandizing on September 12 would place it 14+ hours after the formal arrest — procedurally backwards. Miranda warnings are given at the moment of custodial interrogation, before or at detention. They are not given 14 hours after formal booking.
Reason 3 — "Evening of His Arrest" Means September 11 Evening
The defense motion (lines 3257–3259) states the Miranda encounter occurred "on the evening of his arrest." The arrest was at 4:00 AM on September 12. The "evening leading into" a 4:00 AM arrest is September 11 evening — not a September 12 evening that would fall 14 hours after the arrest.
Reason 4 — The Probable Cause Affidavit Describes a Different, Later Encounter
The Probable Cause Affidavit states investigators "encountered in-person" Robinson "in Washington County on September 12, early morning hours." This is not a contradiction — it describes a distinct event: Utah County investigators (who drove 3.5 hours) observing Robinson's clothing for evidentiary comparison to surveillance images. This formal investigative encounter occurred after midnight on September 12, after the Miranda encounter and after Robinson had waited for hours. The two documents describe two different events.
Complete Sequence of Events
| Time | Event |
|---|---|
| 6:25 PM Sep 11 | Robinson Mirandized; invokes right to counsel (Doug Terry) |
| 6:26 PM Sep 11 | Robinson invokes right to remain silent |
| 6:26 PM onward | No questioning; Robinson waits with parents, uncuffed, given water |
| 7:57 PM Sep 11 | Robinson posts Discord message: "It was me at UVU yesterday. Im surrendering..." |
| 8:02 PM Sep 11 | Sheriff Brooksby notified by retired detective that Robinson is in Washington County |
| ~9:50 PM Sep 11 | Robinson, father, and retired detective drive to Washington County Sheriff's Office |
| 10:00 PM Sep 11 | Utah County booking sheet records arrest time as approximately 10:00 PM |
| 10:26 PM Sep 11 | Robinson arrives at Washington County Sheriff's Office (~2226 hrs per official records) |
| ~12:30 AM Sep 12 | After ~2.5 hrs, Robinson transferred to FBI custody; Utah County investigators arrive |
| 4:00 AM Sep 12 | Formal arrest logged; booked at Utah County Jail, Spanish Fork, UT |
| 7:18 AM Sep 12 | Probable Cause formally entered by Officer Brian Davis (ID: 189904) |
| 5:00 PM Sep 12 | Utah County public press release announcing arrest |
| Sep 16, 2025 | Formal charges filed; Notice of Intent to Seek Death Penalty filed |
Charges Filed
- Aggravated Murder (1st Degree Felony)
- Felony Discharge of a Firearm Causing Serious Bodily Injury (1st Degree Felony)
- Obstruction of Justice (2nd Degree Felony)
- Held without bail
Case: State of Utah v. Tyler Alexander Robinson, Case No. 251403576
Source Documents
- Defense motion 3_30_26 (
3_30_26_Redacted_Motion_To_Exclude_Cameras.md) — Filed March 30, 2026. Motion to exclude electronic media cameras from court proceedings. Contains verbatim Miranda encounter transcript (Bates 003996-R2) and explicit statement of September 11 surrender date (lines 541–547, 3257–3290). - Probable Cause Affidavit — Filed September 16, 2025. Signed by Officer Brian Davis (UTBDAVIS), Utah Attorney General. Probable Cause ID: 189904. Establishes formal arrest at 4:00 AM September 12; describes investigator encounter in Washington County on September 12 early morning hours. → View / Download PDF