A Dell Rapids man received a life in prison sentence without the possibility of parole for his role in the death of his 18-month old stepson. According to KSFY 39-year-old Keith Cornette was sentenced Thursday after being found guilty of second-degree murder in the death of his infant stepson Hayden Wigton. The child was found unresponsive in a Dell Rapids home in December of 2016. An autopsy was performed and showed the child died as a result of skull fractures after being hit in the head six times. Bite marks were also found on Hayden’s body.