Timothy Treadwell (born Timothy William Dexter; April 29, 1957 – October 5, 2003) was an American bear enthusiast, environmentalist, and documentary filmmaker and founder of the bear-protection organization Grizzly People. He lived among grizzly bears of Katmai National Park in Alaska for 13 summers. At the end of his 13th summer in the park, in 2003, he and his girlfriend Amie Huguenard were killed and almost fully eaten by a 28-year-old brown bear, whose stomach was later found to contain human remains and clothing. Treadwell's life, work, and death were the subject of Werner Herzog's critically acclaimed documentary film Grizzly Man (2005).