PHILADELPHIA (WPVI) -- Philadelphia police released new, chilling video of a man believed to be a serial attacker preying on women on the 800 block of North 15th street.
Detectives with the Special Victims Unit say he attacked three women in the span of 30 minutes in broad daylight Sunday; all three incidents were caught on camera.
Police say in the first incident, he's seen running up behind victim number one and attacks her before she's able to break free.
Five minutes later he strikes again, this time lurking in an alley. He runs up behind victim number two, grabs her, pushes her up against a car for at least a minute before a good Samaritan walking by helps free her from his grasp.
In a third incident, a 21-year-old's panicked shrieks for help prompted him to let her go.
"I heard a girl screaming and I looked out the window, and I saw a young girl run across the street from here to there," said Molly Kaiser, who saw the third victim moments before police arrived, but had no idea the suspect was a serial attacker.
Police don't believe the suspect lives on the North Philadelphia block but do believe he's familiar with the area.
Police also fear these three incidents may not be his only attacks.
"We had two that didn't come forward, it's clear they're being victimized and didn't come forward, so there could always be more victims and we're looking for more now," said Captian Mark Burgmann.
Detectives say the suspect may have possibly exposed himself in a nearby neighborhood before the string of attacks.
Anyone with information is asked to call police at 215-686-TIPS.