On the evening of November 8, 2018, shots rang out at Lakeside Park on Tucson’s east side. Three young men were struck: 21-year-old Matthew Favela and two 16-year-olds, Carlos Ross and Amonn Sandoval. Emergency crews and a bystander who performed CPR responded, but all three victims died of their wounds.

Investigators say the meeting at the park had been arranged. Favela and two friends drove to meet Sandoval and another male; the two friends remained in the car and were not harmed. A brief conversation in the west parking lot escalated into gunfire. The unidentified male who had been with Sandoval fled and was immediately a person of interest.

By early December 2018 Tucson police announced arrests: 15-year-old Filomeno Edwardo Flores, 16-year-old Maki Dion Riley, and 16-year-old Aaron Rodriguez were each charged with first-degree murder. The motive was described as unclear and police did not believe the shooting was gang-related. If anyone knew Matthew, Carlos, or Amonn or has information about that night, please come forward.