Clay County sheriff's deputies were called to Aba Drive in Orange Park just after 2 p.m. when Zachary Moots' parents discovered the child in their car.
The parents told investigators they were in the home cleaning. When they went to check on their son and their four other children, Zachary was not with the others and they began to search for him.
The parents' attempts to revive the child were unsuccessful, and paramedics who responded pronounced him dead at the scene.Deputies believe Zachary got in the car and was unable to get out. While an autopsy is pending, it appears that the child's death was caused by heat exposure.
The Department of Children and Families sent a representative to scene, which is routine, and the case remains under investigation by the sheriff's office.
A sheriff's spokesperson said this tragedy should serve as a reminder to all parents and guardians about the danger by extreme summer heat. In 90-degree weather, the temperature in a vehicle with closed windows can easily exceed 120 degrees.
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