ANDERSON COOPER, CNN ANCHOR: Police in Southern California are asking for the public's help in finding a serial rapist authorities believe is responsible for at least 31 attacks over the past six years. The string of sexual assaults began in Seattle, but shifted several years ago to the Long Beach area. Renee Sams of affiliate KTLA has more.</s>RENEE SAMS, KTLA CORRESPONDENT (voice-over): Long Beach police are asking for your help in apprehending a serial sexual offender, known as the Belmont Shores rapist. He has olive skin, is approximately six feet tall, and has a medium built. He has multiple hair styles, from a shaved head to dreadlocks, possibly wearing a wig, and wears a face mask or covering. With not much to go on, one thing is certain, DNA evidence has positively linked this predator to 13 of 31 cases. The special task force has also tracked the attacker through his methods.</s>ANTHONY BATS, CHIEF, LONG BEACH POLICE: We need you to report barking dogs, suspicious individuals, light bulbs, screens down, things are just unusual in the neighborhood. Do not hesitate to make those phone calls to us.</s>SAMS: Investigators say this predator scopes his sight well in advance, carefully planning his entrance and escape route, preferably through backyards and alleys. Residents are on alert and taking a proactive approach in assisting authorities.</s>UNIDENTIFIED FEMALE: Walk down my street and I'll definitely stop and ask you who you are and where you're going. So it's just -- you have to pay attention.</s>SAMS: Take a good look around the exterior of your home. Check for unscrewed or broken porch lights, open windows, or loose screens, open gates or broken locks. (on camera): Long Beach police department announced that there is a $50,000 reward regarding this case. They want you to report any neighborhood disturbance by calling (866) 600-1110. It could be that one tip that leads police to stopping this guy for good. In Long Beach, Renee Sams, KTLA News.
Southern California Police Ask Public to Help Find Serial Rapist