MALIBU, Calif. — Gender-bender reality-TV star Bruce Jenner rear-ended a car Saturday, causing an accident that killed a woman motorist. Seven other people were injured in the accident, which happened shortly after noon on the Pacific Coast Highway near its intersection with Corral Canyon Road. Jenner’s dark blue Cadillac Escalade was towing a dune buggy in a trailer when he rear-ended a white Lexus sedan being driven by an elderly woman.