Neil Thomas Gunn Sr. wheeled his pickup truck to the curb in a quiet hillside neighborhood in Burbank, about a mile from the police department where he'd worked for 22 years.

He got out toting a 12-gauge shotgun, walked to a grassy area and turned the weapon on himself.

Knowing that officers from his department would be dispatched to the scene, Gunn had left two notes in the truck.

One asked that the vehicle not be impounded but instead released to his family.

The other said: "This is absolutely work related."