Teen stepbrother accused of sexually assaulting and murdering stepsister on Carnival cruise ship pleads not guilty in federal court as family seeks justice in high-profile case.
Florida executes 58-year-old Chadwick Scott Willacy for the 1990 bludgeoning and burning death of neighbor Marlys Sather in Palm Bay after a home burglary.
Mexican authorities say the Teotihuacán pyramid gunman was inspired by US mass shootings, including Columbine, as they probe his motives, background, and impact on tourism.
Gilgo Beach killer Rex Heuermann's ex-wife says he confessed to murdering seven women in their home, revealed in a new documentary after his guilty plea.
