Brian Butler, 36, was reported missing when his friends found his car parked along state Highway 1 south of the Tom Lantos Tunnels at Devil’s Slide, sheriff’s spokeswoman Rebecca Rosenblatt said.
Further investigation revealed that Butler had recently been depressed and was possibly suicidal, Rosenblatt said.
Butler had been seen driving near the San Mateo County coast over the weekend and has not been heard from since, she said.
Butler is described as a white man with brown hair and brown eyes, standing around 5-foot-6 and weighing around 155 pounds. He was last seen wearing a blue T-shirt and jeans.
Anyone who might have information about the case is asked to contact Detective Lisandro Lopez at (650) 363-4055 or the sheriff’s anonymous tip line at (800) 547-2700.