Christopher G. Palacios, 26, was shot and killed during a family barbecue in west Phoenix on the night of Saturday, March 2, 2013. Family and friends had gathered at a home near 27th Avenue and Buckeye Road, along West Papago Street. At about 10:40 p.m. a man arrived, got into an argument, and accounts indicate Christopher stepped in to defend a friend. The man produced a handgun and shot Christopher in the chest; he collapsed and later died from his injuries.

Witnesses said the shooter fled immediately in a black or gray four-door vehicle. Investigators collected beer cans and other items from the yard for DNA testing and issued a composite emphasizing the shooter’s build, height, clothing, and an Arizona Cardinals jersey with the number 11. In January 2016 DNA from the beer cans was matched to a man previously imprisoned for aggravated assault, and he was arrested and charged in connection with the March 2, 2013 incident. Court records describe firearms threats to several guests and identify the wounded victim as C.P., linked to Christopher Palacios by court documents and local reporting.

Does anyone who attended that barbecue or lived nearby in early March 2013 have information that hasn’t been shared with investigators?