On a quiet spring day in 1997, three generations of a family are brutally murdered in a quadruple homicide in Miramar, Florida. Investigators amass a mountain of evidence that seems to point to one suspect - the husband, father, and son-in-law of the victims. But he has an alibi that has left this case unsolved for nearly three decades. Season 5 of Felonious Florida: The Altidor Massacre will be available on May 6.