“There’s no doubt that him going in, the highway patrol officer going in, helped neutralize whatever threat was going on,” Ventura County Sheriff Geoff Dean told. The sheriff said Helus was a 29-year veteran of the sheriff’s office. Over the years, Sergeant Helus worked in various departments within the agency, including narcotics and SWAT.

 Ian David Long, 28, a Marine Corps veteran walked into the Borderline Bar & Grill in Thousand Oaks and began opening fire, initially targeting a security guard. Witnesses say he was dressed in black and and used at least one smoke bomb during the incident.

Long fired multiple rounds from a Glock 21 – .45 caliber, killing 11 people before being engaged by Sgt. Ron Helus. It was unclear if the suspect killed himself or was taken down by Sgt. Helus.

https://breaking911.com/breaking-video-emerges-of-gunfire-at-scene-of-mass-shooting-at-socal-bar-gunman-ided-as-marine-vet/