Authoriries say the suspect approaches victims and uses physical force, even punching them, to remove their belongings.
All of his victims have been women between the ages of 22 and 62.
Police believe the suspect has struck a total of 10 times:
Incident #1: Sunday, January 02, 2011 at 7:15 a.m. at 149 Place and Sanford Ave. The victim was a 28-year-old woman.
Incident #2: Tuesday, January 04, 2011 at 7:10 p.m. at 43-04 158 Street. The victim was a 39-year-old woman.
Incident #3: Sunday, January 09, 2011 at 10:30 p.m. at 64 Ave. and 102 Street. The victim was a 48-year-old woman.
Incident #4: Monday, January 10, 2011 at 9:20 p.m. at 64 Road and 99 Street. The victim was a 52-year-old woman.
Incident #5: Monday, January 10, 2011 at 9:22 p.m. at 61-20 Grand Central Pkwy. The victim was a 31-year-old woman. (This incident happened minutes after incident number 4.)
Incident #6: Wednesday, January 12, 2011 at 10:02 p.m. at 67 Ave. and Yellowstone Blvd. The victim was a 22-year-old woman.
Incident #7: Thursday, January 13, 2011 at 10:25 p.m. at 62 Drive and 98 Street. The victim was a 28-year-old woman.
Incident #8: Friday, January 14, 2011 at 9:30 p.m. at 58-12 Penrod Street. The victim was a 58-year-old woman.
Incident #9: Saturday, January 15, 2011 at 6:20 p.m. at 63-17 Dieterle Crescent. The victim was a 62-year-old woman.
Incident #10: Sunday, January 16, 2011 at 11:20 a.m. at Oak Ave. and 161 Street. The victim was a 23-year-old woman.
The suspect is described as a Hispanic man, age 30-35, 5-foot-9 with a thin build, curly hair and wearing a black workout jacket with two red stripes on the front.
Forest Hills residents are understandably on edge.
"I won't be traveling at home alone at one in the morning," resident Amy Sirken said. " It's the city. Anything can happen."
"It's very unusual for this neighborhood," resident Jimmy Rogers said. "It's a quiet neighborhood. Nothing happens here. That's why I live here. It's surprising."
Anyone with information in regards to these incidents is asked to call Crime stoppers at 1-800-577-TIPS (8477).
You can also submit your tips by logging onto the Crime stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting your tips to 274637 (CRIMES) and then entering TIP577.
All calls are strictly confidential.