ICE Detainer Request for Alien Murder Suspect in Texas

DHS Press Releases

Published April 3rd, 2026

Detected April 3rd, 2026

Summary

ICE lodged a detainer with Texas authorities requesting they not release Francisco Mendez-Marin, a 24-year-old Mexican national arrested on March 18, 2026, for allegedly murdering his wife in Dallas. Mendez-Marin faces a homicide charge after allegedly fatally slitting his wife's throat with a pocketknife less than a month after their marriage. ICE is seeking custody of the alien for immigration review once criminal proceedings conclude.

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ICE filed an immigration detainer with Texas authorities on April 3, 2026, requesting that Francisco Mendez-Marin, a Mexican national, not be released from state custody. Mendez-Marin was arrested by Carrollton Police on March 18, 2026, and faces a felony homicide charge for allegedly murdering his wife, 20-year-old Karla Rangel, by slitting her throat with a pocketknife in Dallas.\n\nThe detainer is a non-binding request asking Texas to notify ICE before releasing the alien so federal immigration authorities can assume custody for immigration proceedings. State law enforcement agencies are not legally obligated to honor immigration detainers. There are no compliance deadlines or required actions for regulated entities as this is an individual case notification.

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TEXAS TERROR: ICE Asks Texas Authorities to Not Release Alien Who Brutally Murdered His Wife in Dallas

TEXAS TERROR: ICE Asks Texas Authorities to Not Release Alien Who Brutally Murdered His Wife in Dallas

Release Date: April 3, 2026
Francisco Mendez-Marin is accused of murdering his own wife less than a month after they were married

WASHINGTON – The U.S. Department of Homeland Security (DHS) issued the following statement after U.S. Immigration and Customs Enforcement (ICE) lodged a detainer asking Texas authorities to not release a criminal who was arrested for slitting his wife’s throat with a pocketknife in Dallas, Texas.

Francisco Mendez Marin, a 24-year-old alien from Mexico, was arrested on March 18 by Carrolton Police and currently faces a felony charge of homicide after he fatally slit his wife, 20-year-old Karla Rangel’s throat. According to local reports, the couple had been married for less than a month.

When confronted by officers, Mendez Marin had blood on his clothes and a bloody pocketknife on him.

“This depraved animal *murdered** his own wife just one month after they were married by brutally slitting her throat with a pocketknife. This illegal alien should have never been allowed into our country to commit this heinous murder,”* said Acting Assistant Secretary Lauren Bis. “ICE requested authorities in Dallas to not release this cold-blooded killer onto the streets. Thankfully, Dallas politicians cooperate with ICE, so together we can ensure this murderer is NEVER loose in American communities.”

Francisco Mendez Marin

He is currently in the custody of the Dallas County Sheriff’s Office and being held in the Dallas County Jail.

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Topics
Homeland Security Enterprise
Immigration and Customs Enforcement
Keywords
Crime
Detainer
Immigration and Customs Enforcement (ICE)
Last Updated: 04/03/2026 Was this page helpful? Yes No This page was not helpful because the content has too little information has too much information is confusing is out-of-date
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