Antonio Cortez, 37, was fatally shot on July 6, 2014, in San Francisco. Authorities described the killing as a targeted, gang-related murder tied to the 19th Street Sureños, a Mission District Hispanic street gang engaged in violent conflict with rival groups.

The investigation involved the San Francisco Police Department and Homeland Security Investigations. On November 13, 2014, three alleged members of the 19th Street Sureños — Miguel Ortiz, Antonio Castillo, and Marvin Cortez — were charged in federal court. The indictment accused them of racketeering conspiracy, firearms offenses and participating in a pattern of racketeering activity that included murder, drug trafficking, witness tampering and obstruction of justice. Counts included conspiring to commit murder in aid of racketeering and using a firearm in furtherance of a crime of violence resulting in murder.

What can readers add about Antonio Cortez, his life in the Mission District, or the events of July 6, 2014?