The suspects, who are said to be either black or Hispanic, display a weapon and forcibly throw the mail carrier to the ground, and then steal their property.
Incident #1 happened in University Heights on Friday, January 8, 2010 at 11:15 a.m. at 175 Zeiser Place.
Incident #2 happened in Mt. Eden on Thursday, December 2, 2010 at 1:30 p.m. at 1340 Morris Avenue.
Incident #3 happened in Mt. Eden on Thursday, January 6, 2011 at 2:15 p.m. at 200 Marcy Place.
Incident #4 happened in the Concourse section on Tuesday, February 22, 2011 at 12:45 p.m. at 265 McClellan Street.
The sketch provided is from the fourth incident. The suspect there is described as a black man, age 18-22, approx. 5'6" in height, 175lbs, with black hair, and wearing a dark jacket.
Anyone with information in regards to this incident is asked to call Crime stoppers at 1-800-577-TIPS (8477).
You can also submit their tips by logging onto the Crime stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting your tips to 274637 (CRIMES) and then entering TIP577.