http://www.cbsnews.com/8301-504083_162-20105347-504083.html

 Only last week, New York Jets Head Coach Rex Ryan joked that fans shouldn't wear their Cowboy gear to Sunday's game, according to CBS affiliate WCBS. "It's probably not recommended that you wear Cowboys stuff, I would think," he reportedly said.

Ryan's comments were criticized heavily by WFAN's Mike Francesa on Thursday, particularly in light of recent fan violence at Candlestick Park in San Francisco and Dodger Stadium in Los Angeles.

McKelvey reportedly wore a Cowboys' hat and jersey to the game and has tattoos of Cowboy stars on his shoulder and arm.

However, the Daily News reports that, according to a source with knowledge of the situation, the brawl actually began because McKelvey and his entourage didn't stand during the national anthem. They also allegedly spoke during "Taps" and "Amazing Grace,"  which caused the Marine to get angry.

"Tha God" said McKelvey is a Jehovah's Witness and doesn't believe in standing for the anthem, the Daily News reports.

According to the paper, witnesses said the irritated Marine wouldn't let McKelvey pass to use the bathroom at halftime. That's when they said McKelvey used the taser.