Police now think he is responsible for as many as five assaults in University Heights in March alone.
In each attack, the suspect crept up behind the victim, forcibly groped her, then took off.
All of the victims were women in their 20s and 30s. None were physically injured.
Police have released surveillance images of the suspect, who is described as a dark skinned male Hispanic, 22-year-old, 5'10" tall, weighing 170 pounds.
Anyone with information in regards to any of these incidents 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 website at WWW.NYPDCRIMESTOPPERS.COM or by texting their tips to 274637 (CRIMES) then enter TIP577.