Of the suspected killers, only one is believed to have been a gang member. Christopher Santana, 19, of Covina is believed to have been a member of the El Monte Flores gang, said Los Angeles County Sheriff’s Lt. Dan Rosenberg.

The girls, Christine Alegre, 16, and Megali Fernandez, 17 are both from West Covina.

” We were very surprised that we were looking at two females, two teenaged girls,” Rosenberg said.