MARIETTA, Ga. (AP) — A Georgia man accused of intentionally leaving his toddler in a hot vehicle to die has pleaded not guilty to murder and other charges against him.

Staci Brinson, the staff attorney for Cobb County Superior Court Judge Mary Staley, said a lawyer for Justin Ross Harris on Friday waived formal arraignment for his client and entered a plea of not guilty.

Harris, who was 33 when arrested, has been in custody since June. He was indicted last month on multiple charges, including malice murder, felony murder and cruelty to children.

Police have said Harris left 22-month-old Cooper in an SUV for about seven hours on June 18, when temperatures reached at least into the high 80s in the Atlanta area.

Attorneys for Harris have said the child’s death was a tragic accident.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.