Patrick James Pfeiffer, 56, was last seen in Altadena, California, on July 21, 2011. After an argument with his wife he left their home at about 1:00 a.m., drove to a friend’s house and left his vehicle there with a note asking that the car be returned to his wife. He has not been heard from since and the case remains unsolved.

Pfeiffer was reported to be suffering from depression at the time of his disappearance. He is described as a Caucasian male, blue eyes, 5 feet 9 inches and about 190 pounds. Distinctive features include surgical scars on his right shoulder and both knees, a pin and scars on his lower right leg, partial dentures and glasses.

The Los Angeles County Sheriff’s Department is handling the investigation and has continued to seek leads. If anyone knew Patrick, saw him after July 21, 2011, or has information about where he might have gone, please share what is known.