Reality TV star and former gold medal Olympian Bruce Jenner, who recently announced he would be transitioning to a woman, was involved in a massive car accident today on the Pacific Coast Highway near Malibu, Calif., the web site TMZ reported. Jenner was apparently uninjured, but a woman in the car Jenner appears to have rear-ended was killed when her car was pushed into oncoming traffic and struck by a black Hummer. The Los Angeles County Sheriffs department confirmed the accident and the single fatality and said three or four cars were involved. Pictures shown on the TMZ web site show Jenner apparently uninjured, but there were reports others involved suffered minor injuries. TMZ also reported that Jenner volunteered to take a blood-alcohol test, which he reportedly passed.