Person of interest in fatal shooting of Tucson police recruit apprehended at border

A third man wanted in connection with the fatal shooting of a Tucson police recruit was apprehended at the U.S.-Mexico border over the weekend, authorities said.

Alexis Monter, 30, was caught when he tried to enter the U.S. through the pedestrian lane of the Douglas Port of Entry just before 8 p.m. Sunday, according to U.S. Customs and Border Protection.

A CBP officer found an active National Crime Information Center warrant while processing Monter.

Officers took him to a holding area before confirming the warrant status and using biometrics to verify his identity.

CBP then called the Douglas Police Department, which took custody of Monter about 8:45 p.m.

Why is Alexis Monter considered a person of interest?

The Pima County Sheriff’s Department said Monter is considered a person of interest in the investigation into the death of 23-year-old Carlos Ramirez because he is thought to be the last registered owner of a Acura MDX involved in the case.

On Aug. 22, Santiago Jorge Rogers was arrested at a Tucson hotel in connection with the fatal shooting.

Two days later, Alex Barnett was apprehended after a three-hour standoff at a Tucson apartment complex and booked into jail on first-degree murder charges.

Details on the fatal shooting of Tucson police recruit

Ramirez and his 23-year-old fiancee were found with gunshot wounds just before 6 a.m. on Aug. 19 at a home in the Valencia West community west of Tucson. Ramirez was pronounced dead at the scene, and his fiancee was hospitalized in stable condition with injuries that are not considered life-threatening.

Ramirez served as a Pima County Sheriff’s Department corrections officer before becoming a Tucson Police Department recruit. His fiancee, whose name was not released, is a current Pima County corrections officer.

KTAR News 92.3 FM’s Senior Editor Kevin Stone contributed to this report.

This is an updated version of a story originally published Sept. 2, 2026.

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