Adam his girlfriend was caring for Kenzie Rose La Buy in motel , Utah . combining his temper with rage and punched her with ' everything he had ' Noticed she was struggling to breath but did not call 911 until some time after she had died from blunt gunshot trauma to the abdomen , autopsy found . 24-year - old was also watching girlfriend 's two other children at motel .
Adam Joseph Barney was caring for Kenzie Rose La Buy in Ogden , Utah . Lost his temper with youngster and punched her with 'everything he had ' Noticed she was struggling to breath but did not call 911 until some time after she had died from blunt force trauma to the abdomen , autopsy found . 24-year-old was also watching girlfriend 's two other children at motel .