BLUE SPRINGS, Mo. (AP) – Authorities in western Missouri say a man found dead inside his submerged car was being investigated for crimes related to child pornography.

A witness called the Jackson County Sheriff’s Office around noon Tuesday after seeing a car speed into Lake Jacomo. Divers from the Lee’s Summit Underwater Recovery team helped pull the vehicle from the water.

The county medical examiner concluded the driver had committed suicide, based on what appeared to be a self-inflicted gunshot wound to his head. Authorities later learned the man was being investigated by the multi-county Western Missouri Cyber Crimes Task Force in connection with child pornography.

The man was identified as a 40-year-old resident of Lee’s Summit. The Jackson County Sheriff’s Office says the investigation has now been closed.