The victims were reportedly not cooperative with police investigators.
It was not known if the three were shot on the freeway or at a different location.
The northbound 5 Fwy. was closed while police investigated.
3 in vehicle shot; 5 Fwy briefly closed
NORWALK/SANTA FE SPRING, Calif. The shooting was reported at 9:46 p.m. by a citizen who witnessed the three victims.
