Is it true that does the grizzly man movie show his death based on the following text?

Treadwell's video camera captured an audio record of the bear attack. Herzog refrained from making this a part of the film, but he is shown listening to it, clearly disturbed. The director advised Jewel Palovak (the owner of the tape) to destroy it rather than listen to it. He later repudiated his own advice, saying it was
no