The closest anyone could come to say that Romo single-handedly lost a game was when they played the Seattle Seahawks in the NFC Wild Card playoff round on January 6, 2007, when he botched the snap on the field goal that would have won the game.
Yet, say had the defense not allowed the Seahags to score 21 points... wouldn't the Cowboys would have won?
Holy crap Texian fans are intense! I wonder if this story made Tony Romo squirm. http://houston.cbslocal.com/2013/10/08/fans-accost-matt-schaub-at-his-home/
Bet them “fans” were from Austin.