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New York police arrested a suspect Wednesday in the shoving death of a New York man who apparently got into an verbal altercation and was pushed onto train tracks just before an oncoming train crushed him.

Naeem Davis, 30, was taken into custody for questioning Tuesday after security video showed a man fitting the suspect's description working with street vendors near Rockefeller Center.

Davis was arrested on a murder charge. He was in custody, and it wasn't immediately clear if he had a lawyer. Earlier, MyFoxNY.com reported that Davis confessed to the crime during questioning.

Investigators recovered security video showing a man fitting the description of the assailant working with street vendors near Rockefeller Center, New York Police Department spokesman Paul Browne said.

Witnesses told investigators they saw the suspect talking to himself Monday afternoon before he approached Ki-Suck Han at the Times Square station, got into an altercation with him and pushed him into the train's path.

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Han, 58, of Queens, died shortly after being struck. Police said he tried to climb a few feet to safety but got trapped between the train and the platform's edge.

Subway pushes are feared but fairly unusual. Among the more high-profile cases was the January 1999 death of Kendra Webdale, who was shoved to her death by a former mental patient.

After that, the Legislature passed Kendra's Law, which lets mental health authorities supervise patients who live outside institutions to make sure they are taking their medications and aren't a threat to safety.

Mayor Michael Bloomberg said Tuesday that he believed that "in this case, it appeared to be a psychiatric problem."

The mayor said Han, "if I understand it, tried to break up a fight or something and paid for it with his life."

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The Associated Press contributed to this report