A man whose toddler son died after he left him in a hot car for hours is asking Georgia’s highest court to overturn his convictions for murder and child cruelty.

Justin Ross Harris, 41, was convicted in November 2016 on eight counts including malice murder in the death of his 22-month-old son, Cooper. A judge sentenced him to life without parole as well as 32 more years in prison for other crimes.