Jack Karch (d. 1999) – also known as "Jack of Spades" – was a private investigator in Las Vegas, and the son of Vincent Grimaldi. In 1994, he was tipped by Jersey Paltz that Max Freeling had targeted a guest at the Cleopatra Casino and Resort, and arranged a sting operation that resulted in Freeling's death. Shortly after, Karch fell to his death from suite 2001 to the gambling floor of the Cleopatra.