Marshall Gernova Davis was 34 when he was shot and killed on the south side of Tucson on the evening of Friday, March 21, 2014. Officers responding to a report of a shooting in the 3800 block of East Presidio Road found Davis with gunshot wounds; he was pronounced dead at the scene. Investigators say he had been involved in an altercation with a group shortly before the shooting, and witnesses saw several people leave the area in a vehicle after the shots.

Tucson homicide detectives pursued leads and identified a person of interest. On March 25, 2014, the U.S. Marshals Mexico Investigative Task Force and Tucson Police located and arrested 24-year-old Adrian Michael Brewer in Phoenix; he was booked on a warrant for first-degree murder. Detectives stated they believed others were involved and continued to seek information about additional suspects.

Does anyone have information about the altercation or the vehicle seen leaving the scene?