Isaac Rivera, 41, was found with serious injuries inside his home near 7900 W. Catalina Dr. in west Phoenix on Christmas Day 2016. He was taken to a local hospital but died from those injuries after what police describe as an altercation that followed his return from a nearby Circle K convenience store. Rivera had been the frontman for the punk rock band Section8 for more than two decades.

Phoenix police identified 26-year-old Alexander James Chavez as the person allegedly involved in the deadly confrontation and located him at a place where he had been staying. Chavez was taken into custody on the Wednesday after the incident and was charged with Rivera’s murder. Authorities did not immediately release details about what sparked the altercation, and Chavez made no statements to detectives after his arrest.

If anyone knew Rivera, Chavez, or observed activity near 7900 W. Catalina Dr. on Christmas Day 2016, please share information that might help clarify what happened.