These serial killers uttered haunting last words before their executions. | Investigation Discovery

Some of the most famous serial killers wound up on death row, and just before their execution, they shocked the world one last time with some seriously chilling final words. Who was the scariest of them all? Check out today's new video to find out which killer uttered the most terrifying last words right before they were executed. | The Infographics Show

Before being executed, these serial killers gave us chilling, disturbing interviews | WatchMojo