On November 7, 2018, a mass shooting took place at the Borderline Bar and Grill in Thousand Oaks. Twelve people were killed. The victims were: Sean Adler, Blake Dingman, Jacob Dunham, Cody Gifford-Coffman, Sgt Ronald Helus, Alaina Housley, Daniel Manrique, Justin Meek, Mark Meza Jr, Kristina Morisette, Telemachus Orfanos and Noel Sparks.
The gunman was a Marine veteran from Newbury Park. The 28-year-old, Ian David Long, also died, of a self-inflicted gunshot.