Hahahah, this was very entertaining! <3 Surprised you didn't mention Darwin Awards. O_o

In 2013, a Brazilian man was killed in bed when a cow fell on top of him. It had escaped from a nearby farm and climbed onto his roof, which backed up to a hill.

DFAQ cow decided to climb a fuc*in house? xD

In 1980, the mayor of Betterton, Maryland climbed on top of a sewage tank to test the city’s waste treatment. She fell in and drowned in 15 feet of human sewage.

...But this one was most f*cked up from ones you wrote here. Ugghhh

P.S. For some reason I think coolest death would be - to die in black hole...