If true he probably had liver disease. Says he was a heavy drinker. Once you get cirrhosis your blood doesn't clot so well. Also, due to the back pressure from blood not being able to pass through the lover the viens in your throat swell up and eventually burst. A lot of drunks these days die that way, puking up blood. Also shitting out blood because the hemorrhoids get really swollen too and can also break open.