To a Bloody Pulp

Liver-Eating Johnson was a mountain man who engaged in a multi-year feud with the Crow Indians. After the Crows killed his wife (a Flathead Indian), Johnson ended up fighting and killing over 30 Crows and eating their livers before finally making peace. He had a history of killing (and occasionally eating) other Indians over the years, until finally settling down as a respectable sheriff, retiring to California and dying of old age in 1900.