Emmanuel Toscano, Hilario Aguero, Fernando Garcia-Santos and Gabriel Gonzales were convicted by a Kern County jury last month. Their sentences vary slightly, but they each received at least 25 years to life in prison without the possibility of parole.
A fifth defendant, Cristian Albarran, previously pleaded no contest to one count of second-degree robbery, but he goes back to court Sept. 14 for a hearing on a motion to withdraw that plea.
The victim, 16-year-old Gerardo Villapudua, had left a quinceanera at Santiago's Restaurant on South H Street with three friends when the assailants followed them to a secluded area of an adjacent church parking lot, prosecutors said.
The alleged gangsters repeatedly challenged the victim and his friends to fight, but the boy and his friends refused. Gonzales took the victim's cellphone and hat, but Villapudua continued to resist a fight.
Toscano shot Villapudua in the back with a 9 mm gun while Villapudua was seated in a car attempting to get away, the District Attorney's office said last month.
The shooting was supposed to be retaliation for a gang shooting a week earlier, but prosecutors said Villapudua was not affiliated with a gang.
Toscano, Aguero, Garcia-Santos and Gonzales are alleged members of the Loma Bakers criminal street gang.