Good Samaritans tried to stop graffiti vandals and were shot. Now, gunman convicted

A gang member was convicted of murder and attempted murder Thursday for the shootings of two people who confronted a pair of graffiti vandals in an unincorporated area near Anaheim.

David Steven Ortega, 36, of Chino, was convicted of first-degree murder and attempted murder. Jurors, who deliberated…