When a man returned to his truck after working a five-hour shift, he opened the door to find his 9-month-old daughter inside.
"We received a call around (4:45 p.m.) of a child who was unresponsive and had been found in the back of a vehicle," Lt. Donna Seyferth told the Atlanta Journal-Constitution.
Co-workers say they called 911 after they heard the man screaming.
“They took as many life-saving measures as they could. Ambulance and rescue did the same, but the child did not survive."
"The child was unresponsive when the officers arrived,” Seyferth began.
Cops say the baby was strapped in a car seat as the outside temperature hit 89 degrees.
Witnesses say the father forgot to drop the baby off at a daycare before heading to work at the Fraternal Order of Police telemarketing office.
Police haven’t filed charges yet, but are continuing to investigate.