The bullet that killed Ventura County Sheriff's Sgt. Ron Helus during November's shooting at the Borderline Bar and Grill in Thousand Oaks was fired by a California Highway Patrol officer.

Ventura County Sheriff Bill Ayub said that Sgt. Ron Helus killed during the Thousand Oaks mass shooting, died from a bullet fired by a California Highway Patrol officer who was also trying to stop ...

The deputy sergeant killed during the Thousand Oaks mass shooting died from a bullet fired by a California Highway Patrol officer who was also trying to stop the suspect, Ventura County Sheriff ...