The Phoenix man accused of shooting and killing the operator of a photo-enforcement van has entered a guilty plea.
Maricopa County Superior Court spokeswoman Karen Arra says 69-year-old Thomas Patrick Destories pleaded guilty to second degree murder Tuesday
The plea stipulates 22 years in prison for Destories. Sentencing is Aug. 20.
Destories was charged with first-degree murder in the April 19, 2009 shooting of Doug Georgianni, who was operating a speed-enforcement van on a Phoenix freeway.
Destories' trial was slated to begin in January, but his attorney requested a psychiatric evaluation, saying Destories has a history of mental illness going back to 1970.
Two psychologists examined Destories and found him competent to stand trial.