Betty Shelby, the Tulsa Police Department officer who shot and killed Terence Crutcher, is being charged with first-degree manslaughter in the case, Tulsa County District Attorney Steve Kunzweiler says.

Kunzweiler announced the charge Thursday afternoon, six days after Crutcher died in a controversial encounter that was captured on video by a police helicopter camera and dashboard cameras.

Crutcher was killed on Monday. Shelby's husband, also an officer, was flying overhead in the helicopter at the time, commenting, "That looks like a bad dude, too. Probably on something."

Crutcher's father had demanded Shelby be charged with first-degree murder.