Story highlights George Zimmerman was at a restaurant in Sanford, Florida, on Sunday night

Some witnesses say he was bragging about killing Trayvon Martin

He says he was explaining how he acted in self-defense

(CNN) George Zimmerman told deputies a man punched him in the face at a Florida restaurant after he thought Zimmerman was bragging about killing Trayvon Martin.

According to a Seminole County sheriff's report on the Sunday evening incident, Zimmerman told the officers he had a short conversation with another man over the man's tattoos and was trying to prove who he was when another man identified only as Eddie asked if he was bragging about the 2012 shooting for which Zimmerman was acquitted.

Zimmerman told deputies he said, "No," and went back to his table after the man made a profane remark and demanded he leave the restaurant.

A few minutes later, the man approached Zimmerman and his friends and punched him in the face, Zimmerman said.

The report says restaurant staff separated the two parties and the man left.

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