David Sosa Arrieta was 30 when he left his Phoenix home in the area of 21st Avenue and Wilshire Drive on the evening of October 7, 2001. He was last seen about 8:00 p.m., wearing a white T-shirt and yellow shorts; his family reported him missing to the Phoenix Police Department on October 8.

On October 11, his white two-door 1994 Mercury Cougar (Arizona plate NJL509) was found abandoned near 18th Street and Washington Street with no sign of David. He is described as Hispanic, brown hair and eyes, about 5 feet 6 inches to 5 feet 8 inches tall, 180 to 190 pounds, with a beard and mustache and several distinctive tattoos including images of a lady and Jesus on his chest, a skull on his upper left arm, a woman in a sombrero on his upper right arm, and a spider on one leg. Investigators consider foul play possible and the Phoenix Police Department continues to handle the active case.

If anyone had contact with David around October 7–11, 2001, or saw his Mercury Cougar after October 7, please come forward with information.