We are getting new details tonight about the moments after neighborhood watchman George Zimmerman shot and killed Florida teen Trayvon Martin on February 26.

We now can show you the surveillance video taken when Zimerman arrived at the Sanford Police Department.

The recording from Sanford police was obtained by ABC News. It shows a handcuffed George Zimmerman being escorted from a cruiser and into the precinct. He had just been taken into custody after shooting 17-year-old Trayvon Martin.

According to a leaked police report published in the Orlando Sentinel, the neighborhood watch volunteer told police that Martin punched him and slammed his head against the ground before he shot and killed the teen.

Martin was walking back to the home of his father's fiancee, unarmed, reportedly talking on a cell phone to his girlfriend.

The surveillance video appears to show no evidence of a bleeding broken nose as later alleged by Zimmerman's attorney.

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