A 29-year-old Wichita man who said he wanted his 6-month-old son to be tough has been sentenced to nearly 39 years in prison in the boy’s death.

Dorl Gwyn was sentenced Friday for second-degree murder in the April 2018 death of Jazz Gwyn at their home in Wichita.

KAKE-TV reports Dori Gwyn told police he was shadowboxing with his son because he wanted to make him a tough kid.

Jazz Gwyn’s mother took the boy to the emergency room because he had stopped breathing.  An autopsy showed Jazz suffered several injuries including a laceration to his heart, rib fractures, bruising and head injuries.

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