Cause Of Death: Pulmonary Embolism
Game/console Responsible: Halo

Chris Staniforth just had stand up; literally stand up from a seated position. Stand and stretch his legs and he'd still be with us today. The 20 year old was famous, among his friends at least, for getting down on Halo...for 12 hour sessions 2-3 times a week. In August of 2011, during his last campaign ever, a blood clot traveled from his legs to his lungs, killing him instantly. Deep vein thrombosis is not to be trifled with. A non-violent end, but an end all the same.