(AP) — The family of a missing 22-year-old Olathe man is mystified by his disappearance a week ago.

Brad Cook left home in Olathe on Oct. 20 without taking his cellphone or wallet. Shortly afterward, someone — possibly Cook — parked his motorcycle at a strip mall in De Soto. Cook hasn’t been seen since and his bank shows no financial activity.

Cook worked for a construction cleanup company and took business classes at Johnson County Community College.

His father, Jeff Cook, says his son seemed fine in the hours before he disappeared. He says Brad Cook wasn’t depressed and none of his guns is missing.

Searchers used a helicopter, horses, a kayak and trained dogs but found no clues to Cook’s whereabouts.