The Effects of Poisoning on a Deceased Person

"This is what makes the story so complicated," says CNN's John Sutter. "I'm not seeing any type of positional lividity going on in his face or bruising lacerations." The doctor could not figure out what this man died of, and he said that he died of heart failure. 'Even though his heart was the best organ he had, does that make any sense? Or is that a throw your hands up?' asks Sutter.