Hiloito Canseco, 54, was last seen Friday around 3:30 p.m. at 1315 Vine St. in San Jose, according to police Sgt. Heather Randol.
Canseco has a previous head injury that left him with diminished mental capacity, Randol said.
He also walks with a limp and has a cane.
Canseco is described as 5 feet 8 inches tall and 140 pounds, with black hair and a beard. He was last seen wearing a black jacket, white T-shirt, black Dickey pants and flip-flops.