Authorities responded to a 911 call of an assault on West Street around 1:30 p.m. on April 29, 2011. Inside the apartment, they found Joseph Sibilla, who had been attacked and robbed of his wallet.
EMS responded and transported Sibilla to Beth Isreal Hospital, where he died 11 days later.
The suspect is described as a black male, 35 to 50 years old, approximately 5-foot-7 with a thin build. The new video shows the suspect walking prior to the attack.
Sibilla was described as a man who was interested in everything, and neighbors said he did not let age or his walker get in the way of living a full life.
"When I heard about the mugging and the attack, it was like, this guy, if you pushed him with one finger he would have fallen down," neighbor Christina Britton Conroy said at the time. "He was so frail. So why would anybody needed to beat him up?"
Conroy served with Sibilla in a church group that performs at local senior centers. She said though he used a walker, it never stopped him from participating or from offering help when and where needed.
"Joe was the kind of guy you want everybody in the world to be," she said.
Authorities also released new surveillance video of Sibilla from that day. Click here to see the video.
Anyone with information in regards to this incident is asked to call Crime Stoppers at 1 800 577 TIPS (8477).