AP) LOS ANGELES Authorities say R&B singer Brandy was involved in a four-car freeway crash in December in Los Angeles that left a 38-year-old woman dead. The cause of the mishap is under investigation. No arrests have been made. The 27-year-old actress-singer, whose real name is Brandy Norwood, was driving a 2007 Land Rover on the 405 Freeway on Dec. 30, when the collision occurred. According to a California Highway Patrol report, she failed to slow down and struck the back of a 2005 Honda at about 65 miles per hour. The Honda, driven by Awatef Aboudihaj, hit another vehicle,...