''Officer hit! Officer hit!:' How the dramatic Virginia Beach shooting unfolded

People exit Princess Anne Middle School, where friends and relatives were reuniting with loved ones who were in a building during a shooting, as officers stand outside Friday evening, May 31, 2019, in Virginia Beach, Va. A longtime city employee opened fire in a municipal building in Virginia Beach on Friday, killing several people on three floors and sending terrified co-workers scrambling for cover before police shot and killed him following a "long gun-battle," authorities said. The municipal center campus is adjacent to City Hall near Nimmo Parkway and Princess Anne Boulevard.Police have not yet released an official timeline, but this is how events unfolded with times accurate to about one minute based on reports and exchanges between officers and dispatchers over the police radio:Outside Building 2, a suspect later identified as DeWayne Craddock, 40, an engineer for the city’s public works department for 15 years, shoots a victim in a parked vehicle multiple times.Craddock then enters the building and opens fire. The last known position on the east side of the second floor.Police report citizens are bringing out casualties."My wife just called me, she has a friend who's on the third floor, and they're hiding in the bathroom,” an officer says.Twitter begins posting active shooter alerts at the municipal center.Officers who have the suspect trapped ask others to move to another frequency.