A Kila man who gouged out the eye of a man who had been having an affair with his wife has been sentenced to 10 years in prison.
Robert Derby III, 35, was sentenced Thursday by District Judge Katherine Curtis.
Derby was found guilty in February on three of four charges filed after the March 2008 assault that left the 29-year-old victim with a broken jaw and bruised ribs and the loss of sight in and eventual removal of his left eye.
Derby and his wife were separated, but Derby said they had been trying to reconcile when he came home and found the other man in bed with his wife. Derby’s attorney, Thane Johnson, argued that his client “snapped” and that the attack was an “involuntary act.”
Derby was sentenced to 20 years with 10 suspended for aggravated assault, criminal endangerment and endangering the welfare of children. The endangering charge stemmed from Derby bringing his three daughters into the bedroom after the beating.
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