Sorry about that, Edward; that was my mistake. The link was to a daily news article; I forgot that the link would (of course) be negated by the end of the day.
Essentially, the story is thus:
A German man who has studied Judo for 15 years was vacationing in Calgary (Alberta, Canada) when he was attacked by a man with a hatchet. He was in his camper, the man knocked on the door and told him something was leaking. He went out to look and when he bent to see where the man was pointing, the man hit him twice in the back of the head with the hatchet. The judoka somehow killed him in self defence.
(BTW - update: the judoka has returned to Germany. He was not charged for killing the man.)
Hope that helps.