Andrew Koening played Mike's best friend Boner on "Growing Pains" in the 80's. Andrew, who was 41, disappeared on Feb 16 and committed suicide. Walter Koenig (Mr. Chekov in the original Star Trek series) is his father. "My son took his own life," his father, Walter Koenig, said in an emotional news conference in the park. "We think he's probably in a very depressed state," he said. Multiple reports said the actor had cleaned out his Los Angeles apartment before coming to Vancouver.