Uncover shocking true crime mysteries where animals played a pivotal role in murder. This "48 Hours" mini-marathon features three full episodes: "The Puzzling Death of Susann Sills," "The Poisonous Wife," and "Cold-Blooded Killer." Prepare to be captivated by unexpected twists and turns as investigators unravel these baffling cases. Binge-watch now and discover the dark side of human nature and the surprising involvement of animals.