The Panthers have signed 26-year old free safety Aaron Francisco.  Francisco played in 10 games for the Colts last season in which he had 16 tackles.  He has now played in 63 games in his five years in the NFL in which he has made 159 tackles, defensed 4 passes, he had forced 1 fumble and he has 2 interceptions.  Francisco will give the Panthers depth at safety while helping out on special teams in 2010.