Now they worry that there may be more victims.
Tyrell Taylor is in trouble with the law again and arrested for the 33rd time.
Police say over the last month Taylor preyed on teenage girls in Mount Vernon.
He's accused of raping three young women all either 16 or 17 years old, despite telling neighbors he was undergoing counseling.
The investigation started March 9th when the first alleged victim contacted police and said she had been raped.
In the weeks that followed, two additional victims came forward.
Police say Taylor knew at least one of the victims and used social media to meet the others.
Investigators say the suspect set up encounters through instant messaging applications including Blackberry messenger.
Taylor was not a registered sex offender, though police say he had been arrested previously on sex charges.
For the last several months, he was renting a third floor apartment on South Fulton Street, which is where at least one of the attacks took place.
After conducting surveillance, police arrested Taylor March 30th as left his apartment.