Police: Man attacks 78-year-old employee at Chinese restaurant in Morrisania

Police are searching for a suspect they say attacked an elderly man at a Chinese restaurant in Morrisania.
According to police, the suspect walked into the restaurant on Boston Road and East 166 Street around 4 p.m. on Jan. 18.
During that time, the 78-year-old employee tells police he was standing behind the counter when a man approached him and punched him in the face before running off.
According to the victim, he had no prior confrontations with the suspect. He did suffer bruising but refused medical attention. 
Police are offering a reward of up to $2,500 for tips that lead to an arrest and indictment. 
The suspect is believed to be in his 20s to 30s and was seen on surveillance video walking down the street wearing dark clothing and a red hat.