Der Raubüberfall (S04E04)

Jill Hennessy and Jerry O'Connell appear as their Crossing Jordan characters, who journey to Sin City to find the killer of an acclaimed violinist while also searching for the victim's missing $3 million Stradivarius violin. Another valuable item goes missing when the Montecito's safe-deposit vault is robbed of a Super Bowl ring belonging to Lawrence Taylor (who appears as himself). Meanwhile, Danny and Delinda try to delicately inform Ed that they're moving in together. (National Broadcasting Company (NBC))