Anthony Vargas was shot and killed last month in East L.A. after deputies confronted a group of suspects in connection with an armed robbery call.
Vargas' mother, Lisa Vargas, says her son may have been mistaken for a suspect in a robbery.
"Anthony's name is not going to be out in vain. We're going to get justice for him," Vargas said. "We're going to continue to do this until we find out what happened to my son, how this happened."
The mother said names of the deputies who killed her son should be released. She said her son liked to fish and taught bible study classes.