Borderline Shooting: 1 year later

November 7, 2018 -- One of the safest cities in America was forever transformed. Twelve people were killed inside the Borderline Bar and Grill in Thousand Oaks. 

US police assess potential threat rise after 3 mass shootings

In the weeks since three high-profile shootings in three states took the lives of more than two dozen people in one week in August, law enforcement authorities nationwide reported a spike in tips from concerned relatives, friends and co-workers about people who appear bent on carrying out the next mass shooting.

Technology execs say they're acting faster on extremist content

Executives of Facebook, Google and Twitter told Congress on Wednesday that they've gotten better and faster at detecting and removing violent extremist content on their social media platforms in the face of mass shootings fueled by hatred.