The Police Department had made catching the robber one of its priorities, deploying additional officers into the neighborhood, assigning Mandarin- and Cantonese-speaking officers to talk to people in the community and papering the area with fliers in multiple languages. They identified Jason Commisso, 34, as a suspect over the weekend.
The string of mostly daytime crimes followed a brutal pattern, the police said: a single robber would follow men and women — all of Asian descent, most over 40 — as they entered apartment buildings. He then shadowed them into elevators, where he would repeatedly punch them in the face before making off with their belongings. At least eight people have been attacked, the police said.
The apparent singling out of one ethnic group led to the involvement of the department’s hate crimes unit, though Commissioner Raymond W. Kelly cautioned late last week that it had not yet been established that the robberies were hate crimes.
The first attack came at 8 a.m. on Jan. 17. A 44-year-old Asian woman, who was not identified by the police, entered a residential building elevator and was assaulted, suffering injuries to her face. The assailant robbed her of a bag that contained several credit cards.
The last attack occurred a little after 10 a.m. on Saturday, shortly before local elected officials held a rally condemning the robberies and warning residents to be alert. The robber broke the nose of a 57-year-old Asian man and stole his cellphone and wallet, the police said.
Lt. Stephen Jones of the New Jersey State Police said state troopers and New York City detectives removed Mr. Commisso from a southbound Greyhound Bus at the side of the New Jersey Turnpike near Philadelphia. Mr. Commisso was being held by New Jersey authorities pending extradition to New York, Lieutenant Jones said.