Cause of Death : Sonny Liston : Congestive Heart Failure
Sonny Liston died from Congestive Heart failure. Despite the theories surrounding his death, there was some suspicious circumstances which were found according to online media reports. Heroin & marijuana was found in the house in which Liston passed away. Several experts have speculated Liston fell backwards causing his death. Liston had a dark past and some criminal connections, which has led many to list the death as suspicious. Liston’s death is still extensively talked about by boxing historians today.
Sonny Liston passed away on the 30th of December in 1970. It was well recognized that Liston had Italian mafia connections according to the online reports available to the public.