PHOENIX - The penalty phase began Monday at the trial of an Arizona man convicted of murder in the 2007 shooting of a Glendale police officer.
Jurors will consider whether to sentence Hulsey to death or life in prison.
Hulsey was a passenger in the vehicle that had been pulled over for speeding and not having a license plate.
Holly was there to serve as backup to another officer who made the traffic stop.
Prosecutors say Hulsey exited the vehicle and fired two shots, one of which hit Holly.
Defense attorneys argue Holly was unintentionally shot by the officer who made the stop.