On a summer evening in Federal Way, Washington, 26-year-old Omero Garcia Mendez went to Lakota Middle School to pick up his girlfriend’s son after football practice. A Lincoln Navigator carrying three people blocked his car in the school parking lot. According to investigators, one of the occupants, 16-year-old Luis F. Cosgaya-Alvarez, flashed gang signs and fired a single, fatal shot to Mendez’s head. The teenager and two companions fled; Mendez later died of his wounds.

Federal Way police tracked leads to Seattle a few days later and arrested Cosgaya-Alvarez. He was charged as an adult with second-degree murder in the death of Omero Mendez. If anyone was at Lakota Middle School that evening or has information about the vehicle or the occupants, please share what you know.