"I was just reading a book and all of a sudden I heard a guy screaming. I turned around and the guy sitting right beside me was standing up and stabbing another guy with a big Rambo knife," he said.
"Right in the throat. Repeatedly."
The man wielding the knife had a shaved head and was wearing sunglasses, he said.
"He looked totally calm. He didn't say a word I don't think to anybody on the bus ... nothing. Just totally calm."
Had only one of those bus passengers had a gun, that young man would still be alive.