If you think dancing is all shiny tutus and sparkly tiaras, think again. It's a cutthroat world of politics and backstabbing. But could Odette's rival Eddie Gordon, who was eliminated from the competition the week prior after a lackluster "Bob-Fosse-inspired" routine, really be capable of murder? Original Air Date: Castle Season 4, Episode 18, "A Dance With Death" airs on Monday, March 19, 2012 at 10 p.m. ET on ABC.