James Rowe, John Spivey & Nancy Spivey (Jack of Spades, Florida)

James Rowe, 60, and his roommates, married couple John and Nancy Spivey, 33 and 37 respectively, spent their last night alive, January 9th, 1991, hosting friends for drinks and card games at their apartment in St. Petersburg, Florida. The three were found bludgeoned to death the following morning. After 31 years, their killer — or killers — continues to elude investigators, with just a handful of tips having come in over years.