Update: Cause, Manner of Death Pending for Toddler Locked Inside Car

Tahlequah Police are continuing their investigation into the death of a toddler who was reportedly left inside her father's car with the heater running last week.

Cody Butler, 19, was arrested on charges of child neglect and second degree manslaughter after leaving his 18-month-old daughter in the back seat of a car while he visited with someone at Norris Park in Tahlequah.

On Monday, the state Medical Examiners office told that the cause and manner of death are still pending for the toddler. A toxicology report is expected to have more information as soon as it's available.

Officers said that just before 9 p.m. Nov. 20th, they were dispatched to the park on Morgan Street after Tahlequah City Hospital EMS notified them of an unresponsive child.

At the scene, EMS had already been providing medical care to the 18-month-old female child before she was transported to the hospital. There she was pronounced dead.

Tahlequah Police said that an initial investigation showed the toddler's core temperature was "extremely high."

"It appears the father had the car running and the heater on," Detective Jeff Haney said. In the press release, Butler told officers that he had stepped out of the car and left the child in a car seat in the back of the car.

Butler said at some point he noticed the toddlers cheeks were purple and began CPR after taking her out of the vehicle.

Stay with and Channel 8 as we receive updates to this developing story.