(AP) -- PICKENS, S.C. (AP) - A Sunset man who told authorities he had to kill his stepfather "to rid the world of a pedophile" has pleaded guilty.

The Greenville News reports that 31-year-old Travis Chad Davidson was sentenced to 10 years in prison Wednesday after pleading guilty to manslaughter.

Deputies say Davidson argued with 49-year-old Richard Alvin Mulkey at Mulkey's home in March. They said Davidson threw Mulkey on the ground and stabbed him multiple times, leaving a kitchen knife sticking out of the man's exposed buttocks.

When they arrested him, Davidson told deputies he had killed his stepfather because the victim was a pedophile. Mulkey is not listed on South Carolina's sex offender registry, and deputies would not comment on Davidson's allegation.

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