The NYPD is asking New Yorkers to be on the lookout for this guy, who's believed to be the perpetrator of at least four attacks on women in Sunset Park and Park Slope since March. In three out of the four assaults, his victims were able to fend themselves off, but police say that just before 3 a.m. on Saturday the assailant followed a 28-year-old woman into the vestibule of her apartment on 55th St. in Sunset Park and raped her. Here's surveillance video of the man police believe is responsible:

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The NYPD also released a composite sketch of the suspect, whom police describe as Hispanic, between 25- to 30-years-old, about 5-feet 7-inches tall and approximately 165 lbs. At a press conference yesterday, NYPD Commissioner Ray Kelly noted that he …"has an Hispanic accent, but speaks English." Officials believe he first struck March 20th, when he attacked a 24-year-old woman on East 16th Street near Fourth Avenue in Brooklyn, pushing her to the ground from behind. She was able to escape with minor injuries, and that attack was documented in this chilling video:

On May 3rd, he allegedly forced a 32-year-old woman at knife point into a driveway on Ridge Bouleavard and attempted to rape her, but she fought him off. Then on May 29th, police say the same man grabbed a 20-year-old woman on 55th Street in Sunset Park at 10:30 p.m., pushed her to the ground and tried to rape her. She escaped with minor injuries. One tipster who lives on Prospect Avenue says there's been an increased police presence in his neighborhood, and writes:

We're on Prospect avenue, and tonight we saw a police cruiser for the first time in a LONG while. They were rollin' slow down Prospect, so my wife chatted with them for a few minutes. They were indeed from the [often absent] 72nd precinct. They were nice guys. I explained that I had heard an "attempted" rape, May 28th (she was screaming loudly and ran up Prospect Ave) and a bunch of good Samaritans and myself came to the woman's aid around 3am. We waited with her until the cops came.

Anyone with any information is urged to call Crime Stoppers at (800) 577-TIPS. Tipsters can also submit information at or by texting CRIMES (274637) then entering TIP577.