COBB COUNTY, Ga. -- A new warrant has been issued against Justin Ross Harris, the father accused of killing his 22-month-old son by leaving him in a hot car for over seven hours.

Harris is being charged with felony murder and second-degree cruelty to a child. Originally, Harris was charged with felony murder and first-degree cruelty to a child.

The warrant states Harris did place his son, Cooper, into a rear facing car seat after eating breakfast with his son at the Chick-fil-a on Cumberland Boulevard. Harris left his son in the car when he entered his workplace.

During Harris' lunch break, the warrant states, he returned to the car through the driver's side door to place an object in the vehicle. At around 4:16 p.m., Harris left work in his vehicle and pulled over at a shopping center on Akers Mill Road asking for assistance with his child.

Police arrested and charged Harris with child cruelty and felony murder a little over five hours after he discovered his son's body.

Harris told police he'd forgotten to drop his son off at daycare that morning.