OJ Simpson's former NBC Sports co-host Bob Costas reveals 'awkward' joke accused murderer made to him during their brief jail visit ahead of the 1994 trial: 'Wait a minute, wait a minute - you did it!'

OJ Simpson's former NBC co-host Bob Costas revealed the 'awkward' joke the accused murder made during a 1994 jail visit before his trial for the murders of Niccole Brown and Ronald Goldman.