Seth Klein was last seen around 1 p.m. on Sunday on the 400 block of North Winchester Boulevard, police said.
Seth Klein was last seen on August 9, 2026 in Santa Clara, CA, police said. (Santa Clara Police Department)
Police described Klein as 5 feet 11 inches tall and weighing around 245 pounds, with brown eyes and brown and gray hair. He was last seen wearing a blue polo shirt and gray or tan pants.