A police video showing Trayvon Martin's killer, George Zimmerman, has surfaced, contradicting claims from the night of the killing.

According to the New York Daily News, the Sanford, Fla. Police Department had not arrested Zimmerman, the neighborhood watchman who killed the unarmed teenager, because the gun shot was in self-defense. Zimmerman claimed that the 17-year-old confronted him, punching him once, and then pounding his head into the ground

Officer Timothy Smith had written after the shooting on February 26 that the watchman's back appeared to be wet and was covered in grass, as if he had been laying on his back on the ground. Smith continued in the report that Zimmerman was also bleeding from the nose and the back of his head.

This new video that has come to light shows a much different side to the story. Video of Zimmerman arriving at the police station on the night of the shooting has him appearing to be uninjured. No broken or bloody nose can be seen, and no grass marks or bruising on the back of his head can be seen.

ABC News obtained the video footage from a high-quality security camera.

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