Toni left a cousin's home in Oakland, California to drive back to her family's residence in San Francisco, California on March 16, 1990. She was driving her boyfriend's Chevrolet Camaro, which she had trouble starting when she left; it kept stalling. The car apparently stalled again on the San Francisco Bay Bridge sometime during the evening. Another car collided with Toni's vehicle prior to 12:00 a.m. Police arrived just six minutes later and found that Toni was not inside the vehicle after the accident. No blood, hair or oil residue was found in her vehicle. She has a mole on her left calf and a scar on her right knee.