Retirements each season can aid in figuring out whom are the culprit, however, I'm unsure if there's a way of pulling up the final contract #s for retired players.

...this leads me into thinking if it would be an easy thing to have the dead cap link clickable on one's roster and once you get in to have a list of who is costing you and how much they're contributing to the dead cap. Player A, X amount of dollars.