What we know about the shooting that left 12 people dead in Virginia Beach
(CNN) -- At least 12 are dead and at least four others are injured after a shooting Friday afternoon at the Virginia Beach Municipal Center.
Police have said the gunman succumbed to his injuries after a long gunfight with officers. A Virginia government source briefed on the investigation told CNN the shooter was a "disgruntled employee," but police said Saturday morning they were still trying to determine the gunman's motive.
Here's what we know:
How the shooting unfolded
The shooting began late Friday afternoon when a man opened fire on all three floors of the municipal center's Building 2, which houses the operations building for the city that includes multiple depart...