Weird news: Man killed by snake after he killed snake

Seems weird, I was totally shocked when I read this. It seems totally weird and impossible, but has been ratified by scientists that it is very much possible. It also means that chefs all over need to be very careful, or even anybody else who deals with poisonous snakes. What happened in this case ?
There was a report of a chef in China who died soon after removing the head of a poisonous snake. This was an Indochina spitting cobra, and the chef had cut its head off in order to prepare snake soup, with the head having been cut off around 20 minutes before. The chef could not be saved since emergency workers were not able to get to him before the effects of the snake venom (read article):

"The snake's venom apparatus and jaw muscles are all contained in the head -- as are the nerves that control these muscles and venomous glands," Lewin said. "Unlike humans, snake tissue can withstand long periods without circulating blood… The tissue doesn't lose function as quickly as a mammal and the reflexes remain intact" even after death. "It's a bit creepy to me because it blurs the meaning of being dead," he added. "People are susceptible to these reflexive bites probably because they are thinking of beheading from a human perspective."

Gives an entirely different meaning to the phrase about death being the end.