Arizona authorities have arrested a man in connection with a home invasion shooting that killed a Tucson police recruit and left his fiancée hospitalized.

Carlos Ramirez, 23, was shot dead at his home in southwestern Tucson early Wednesday morning, according to the Pima County Sheriff's Department (PCSD). He was expected to graduate from the police academy on Aug. 27 and had previously worked for PCSD as a corrections officer. His 23-year-old fiancée, whose name has not been released, also works as a corrections officer in the department.

Pima County Sheriff Chris Nanos previously said the suspects were wearing all black clothing and ski masks at the time of the shooting — which happened around 6 a.m. Wednesday.

A search of Pima County courts for prior cases came back empty for Rogers. However, a man of the same name and age has drug and shoplifting convictions in Yavapai County, possession of contraband behind bars in Navajo and Graham Counties, and a number of lesser charges in Prescott.

Surveillance video shows men identified as Rogers and Barnett in black clothing and picking up items at a gas station convenience store about 20 minutes before the shooting.

Hours later, surveillance video taken from a parking lot shows a third man parking the suspect vehicle, a gray Acura MDX SUV, and walking away.

He has not been publicly identified, but the sheriff's department said Sunday he had been contacted by detectives.

"No arrest has been made as investigators work to determine his involvement," the department said.

Anyone with information on the case or Barnett's whereabouts is asked to call 911 or 520-88-CRIME.