The Oakland Tribune has details of the tragedy here.
The three slain sergeants have been identified as Erv Romans, Dan Sakai and Mark Dunakin. A fourth officer was shot and is in critical condition. The fourth officer is John Hege, age 41.
All our prayers to Officer Hege.
God rest the souls of the dead officers. May their families find peace in time.
Update: Officer John Hege has died.