Anyone with information in this case is asked to call Crime Stoppers at 1-800-577-TIPS (8477). The public can also submit their tips by logging onto the Crime Stoppers Web site or by texting their tips to 274637 (CRIMES), then enter TIP577. All calls are strictly confidential.
All three incidets occurred near the intersection of Flatbush Avenue and Bedford Avenue in the Flatbush section of Brooklyn.
The first attack took place back on April 13, when the man sexually assaulted a woman after following her back to her apartment, police said.
He struck again in May and most recently on Friday, Dec. 10. In both cases, he forced his way into his victims' apartments and raped them.
All of the attacks took place between 10:30 p.m. and 2 a.m, police said.