Billionaire philanthropists found dead in basement under suspicious circumstances, police say

Billionaire philanthropists found dead in basement under suspicious circumstances, police say  Washington Post Police Investigate 'Suspicious' Death of Prominent Toronto Couple  New York Times Canadian billionaire, wife found dead in their Toronto home  USA TODAY Billionaire Apotex founder Barry Sherman and wife found dead in Toronto home  The Globe and Mail Murder-suicide suspected in deaths of Toronto billionaire and wife  Toronto SunFull coverage