Timothy Treadwell became world-famous overnight — but for a tragic reason. In 2003, he and his girlfriend Amie Huguenard set out for Katmai National Park in Alaska.

What was meant to be another close encounter with the grizzlies he adored instead became their final journey, captured in a chilling audio recording of the moments before they were killed by a brown bear.

Ended in horror

Timothy Treadwell was born in Mineola, Long Island, New York, and showed a love for animals from an early age. But it wasn’t until a close friend convinced him to travel to Alaska that his fascination with bears truly began.

In his memoir Among Grizzlies: Living with Wild Bears in Alaska, Treadwell revealed how his mission to protect the animals was born in the late 1980s, shortly after he survived a near-fatal heroin overdose. He credited his recovery to his encounters with wild bears, writing that from the moment he first saw one in the wild, he knew his destiny was tied to theirs.

Over the years, Treadwell — who became known worldwide as the self-styled “Grizzly Man” — spent 13 summers living among Alaska’s brown bears. But in October 2003, the passion that defined his life ended in tragedy when he and his girlfriend, Amie Huguenard, were fatally attacked at Katmai National Park.

Final cries

Treadwell frequently filmed his interactions with the bears, and investigators later confirmed that an audio recording captured the couple’s final moments. The six-minute tape begins begins with Treadwell shouting that he is under attack, crying out, “Come out here; I’m being killed out here.”

According to Alaska wildlife biologist Larry Van Daele, the recording captures Treadwell screaming for help as Huguenard rushes to unzip their tent. She pleads with him to “play dead,” and the bear briefly retreats, only to return minutes later.

Treadwell can be heard begging her to hit the animal, while she screams for him to fight back. The recording ends with his voice fading away, her screams continuing in the darkness.

Investigators also recovered Treadwell’s video camera, which had been running during the attack. The footage contained no images — only sounds of the mauling— leading troopers to believe the camera may have been inside a bag or that the attack happened at night.

In Werner Herzog’s documentary Grizzly Man, however, the filmmaker suggested the lens cap had simply been left on, implying that Treadwell and Huguenard were preparing to shoot another scene when the bear struck.

When rangers later killed a 28-year-old brown bear in the area, they discovered human remains and clothing inside its stomach. Testing confirmed the remains belonged to Treadwell and Huguenard, bringing a devastating end to a story of devotion that turned into tragedy.

Why did the bear attack?

Why the bear attacked Timothy remains uncertain.

Each summer, Treadwell set up camp near salmon streams where bears gathered to feed in preparation for winter. In 2003, though, he stayed later into the season than usual, when food supplies were dwindling and bears grew increasingly aggressive in their search to build fat reserves.

He also suggested that when Treadwell moved after “playing dead,” or when Huguenard tried to help, it may have triggered the bear’s predatory instincts.

Her terrified screams, Van Daele noted, could have even sounded like a prey call, provoking the animal further. The bear then dragged her body away, likely intending to return later.

Just hours before his death, Treadwell captured footage of a bear plunging into a river again and again in search of a dead salmon.

In the video, he admitted feeling uneasy around that particular animal. In Grizzly Man, filmmaker Werner Herzog later wondered whether the bear caught on camera that day was the same one that ultimately took Treadwell’s life.