Barry and Honey Sherman, a Toronto billionaire couple married 47 years, were found dead by their pool with leather belts around their necks in December 2017—initially suspected murder-suicide, then classified homicide, but remains unsolved nearly a decade later despite theories linking their deaths to pharmaceutical rivalries, corporate espionage, and hidden enemies across multiple industries. Honey Sherman attempted to call 911 during the attack but the call failed, and her phone was found face-down on a bathroom floor upstairs, suggesting she was ambushed in the house before being moved.