thanks for reposting the link, i didn't take the time to read this earlier...
so, from reading this, a few things struck me...
it took 6 minutes to kill Tim because
1) the bear was really old (28) and his canines were broken in half.... his other teeth were worn down to nothing... in other words, Tim was mauled and gummed to death... when they found his head, his mouth was shaped in a horrible grimace....
2) Amie scared the bear off after the initial attack started... Amie came out of the tent and was yelling at Tim to play dead. The bear was startled and took off... Then she went to see to his wounds, and then the bear came back... Amie ran back to the tent and the bear, thinking Amie was trying to steal his dinner, dragged Tim off... Amie got the frying pan and was chasing the bear and hitting him with the frying pan, but the bear just kept on dragging Tim off away from Amie... Amie was freaking out screaming, and the bear came back and got her too... I am thinking she must have been trying to play dead, cuz when they found her head, it had a peaceful, sleeping face on it... the tape ran out before the bear actually killed Amie...
man, what an awful way to go...