Story highlights Police investigating death of 16-month-old who died after being left in a car

Temperatures on Tuesday afternoon were in the low 90s

Father was "great with kids," colleague says, expressing doubt incident was intentional

Lake City, Florida (CNN) A 16-month-old girl died after her father forgot to take her to day care and left her in a vehicle in the northern Florida sun, according to the Columbia County Sheriff's Office, citing what family members told authorities.

Police are investigating the Tuesday death, casting the girl's parents into the spotlight: The girl's mother has been identified as Wendy Timonera Kwon, an assistant state attorney; her father is Young Kwon, a public defender.

"This is still an active investigation, and we're still in the process of conducting interviews," said Gretl Plessinger, Florida Department of Law Enforcement.

The Sheriff's Office asked the Florida Department of Law Enforcement to investigate the death because the girl's parents work for the 3rd Judicial Circuit.

"They just don't make them any better than Young and Wendy," said Blair Payne, a public defender for the 3rd Judicial Circuit. "He was great with his kids. There is absolutely no way that this was anything other than just a horrendous accident."