What We Know
Marjulin Briceño Arrieta: What We Know
Video · 2:51 · Watch on YouTube
Marjulin Briceño Arrieta, 42, of Denton, Texas, went to meet her estranged husband on Sept. 28, 2026 and has not been found. Denton police say they believe she is no longer alive and have obtained a murder warrant for him. He has not been arrested. He is charged, not convicted, is presumed innocent, and is not named here.
What's confirmed (as of Oct. 18, 2026)
- Sept. 28Briceño Arrieta met her estranged husband at his Denton apartment around 6:45 p.m.; her family could not reach either of them. FOX 4; WFAA; NBC 5
- Her car was later found abandoned near his apartment; police say the license plates on both cars had been switched. FOX 4; NBC 5
- Police say license plate cameras tracked his vehicle west across Texas; on Sept. 30 police in Albuquerque, N.M. say a man matching his description left it in a hotel parking lot. FOX 4 (Denton PD graphic); Albuquerque Journal
- Oct. 13Denton police obtained an arrest warrant for murder. Interim Chief Tony Salas said investigators believe she is no longer alive based on evidence collected, and did not detail it. Her body has not been found. FOX 4; WFAA; NBC 5; CBS News
- The FBI is assisting. Denton County Crime Stoppers offers up to $2,000 for information leading to his arrest. FOX 4; WFAA
What we don't know
- Where he is. Where she is. What evidence led police to say she is no longer alive. Police have not said.
- Single-sourced or conflicting claims are left out of this video.
What happens next
- An arrest, a recovery, charging documents or a first court date would be reported by Denton police and local outlets. We will post an UPDATE when it is confirmed.
Chapters
- 0:00Marjulin Briceño Arrieta: Denton mother missing
- 0:35Denton to Albuquerque: the timeline
- 1:22Denton police: what they believe
- 1:48Denton murder warrant: the search
Sources
- FOX 4 Dallas-Fort Worth (Oct. 13, 2026) Reportingfox4news.com/news/denton-police-seek-publics-help-finding-suspect-accused-murdering-estranged-wife
- WFAA, NBC 5 Dallas-Fort Worth, CBS News Texas, Denton Record-Chronicle, KERA (Oct. 13-14, 2026)
- Albuquerque Journal (Oct. 14, 2026)
- Denton Police Department camera-hits graphic, as published by FOX 4
The record · as of Oct. 21, 2026
How we know
Primary records are court and agency documents; reporting is news coverage we checked against them. How we report.
What happens next
Verified timeline
- 2026-09-28Marjulin Briceño Arrieta, 42, met her estranged husband around 6:45 p.m. at his Denton apartment, per Denton police; her family could not reach either of themFox 4; Dallas Express
- 2026-09-28Police found her vehicle abandoned near his apartment, his vehicle missing, and say license plates on the two cars had been switchedFox 4; Dallas Express
- 2026-09-28Police say a Flock camera placed his vehicle in Wichita Falls about 9 p.m. Sept. 28, near Amarillo Sept. 29 (1 a.m. Donley County; 10:44 p.m. west of Amarillo)Fox 4; Dallas Express
- 2026-09-30Albuquerque police got a plate hit on his vehicle; hotel video shows a man matching his description leaving it in a hotel parking lot, per policeFox 4; Dallas Express; Albuquerque Journal
- 2026-10-13Denton police announced an arrest warrant for murder for the estranged husband (charged-only, not arrested, not convicted, presumed innocent). Interim Chief Tony Salas: police believe she is no longer alive; her body has not been found; police have not detailed evidence. FBI Dallas assisting; Crime Stoppers reward up to $2,000Fox 4; Dallas Express
Also in our research file
- Denton Police Department news release Primary recordCity of Denton
- Albuquerque police find vehicle tied to Texas murder investigation ReportingAlbuquerque Journal · Oct. 14, 2026
- Albuquerque Journal: Albuquerque police find vehicle tied to Denton murder investigation Reportingabqjournal.com
- Dallas Express: Missing Denton Mom Feared Dead, Estranged Husband Wanted For Murder Secondarydallasexpress.com
Updates and corrections
Map data: U.S. Census TIGER (public domain)
TIPS: Denton County Crime Stoppers, 1-800-388-TIPS (8477) or www.dentoncountycrimestoppers.com. Anonymous.
Everyone charged is presumed innocent unless proven guilty.
Spot an error? Email corrections@undercurrentdaily.com. See our corrections policy. Have information about this case? Contact the investigating agency first.
