Security footage shows a convicted killer "crabwalking" up the walls of his prison. ABC News’ Em Nguyen reports on Day 8 of the manhunt for him. WATCH the ABC News Live Stream Here: youtube.com/watch?v=w_Ma8oQLmSM SUBSCRIBE to ABC NEWS: bit.ly/2vZb6yP Watch More on abcnews.go.com LIKE ABC News on FACEBOOK facebook.com/abcnews FOLLOW ABC News on TWITTER: twitter.com/abc #news #manhunt #convict #prisonbreak #prisonescape #abcnews