A criminal complaint states Taylor arrived at Regions Hospital on the evening of May 4 carrying his son and frantically asking for medical help. The boy was unresponsive and was pronounced dead on arrival.

According to the complaint, an off-duty police officer approached Taylor and asked what had happened. Taylor allegedly asked to go to his vehicle, and the officer was said to have gone with him to a 2017 Dodge Journey parked outside the hospital. As Taylor grabbed some items, the officer reportedly noticed the inside of the vehicle was very hot.

RELATED: Man accused of leaving his son for hours in hot car at CHS Field charged with manslaughter

The boy's mother also arrived at the hospital and told police he was fine when Taylor picked him earlier that weekend so she could go to work at her early-morning job.

The complaint goes on to allege Taylor - who was arrested at the hospital - said he and his son had gone to an event at which he was scheduled to work at CHS Field on May 4. He said that he got his son settled on the outfield grass where he could see him. When things slowed down, the complaint states Taylor said he went to check on the boy.

When the boy said he was tired, Taylor allegedly said he took him to the vehicle. The complaint claims he told police he "hit the automatic window and thought he left it cracked maybe 1/2 or 1/4 of an inch." He then allegedly "gave the boy a blanket and a hand-held gaming system to entertain him if he didn't sleep."

The complaint states that when Taylor returned to the vehicle after getting done with work, he called his son's name and got no response. He then found his son had no pulse, which led him to place the boy in the front passenger seat and drive to the hospital, holding his son's hand en route.

RELATED: Family of child left in hot car calls boy's death 'a tragic mistake'

But a police sergeant later spoke to two of his co-workers, who both said Taylor never left his shift, the complaint claims. And, in a second conversation with the sergeant, Taylor allegedly admitted he had left his son in the vehicle for the entirety of his shift.

"He said he couldn't find anyone to watch his son, and that the last time he checked on the boy was at 11:30 a.m.," the complaint reads. "Taylor said he didn't think it was that hot. Taylor said he had done it once in the past about a year ago and nothing bad happened to the boy on that occasion, but he admitted he had left the window entirely down that time."

The complaint notes the parking lot at CHS Field where the vehicle was parked "was entirely exposed to the sun."

According to the complaint, the Ramsey County Medical Examiner determined the cause of the boy's death to be probable hyperthermia.

