The cause of death is finally known for the Gainesville diver who died at Weeki Wachee Springs last weekend.

According to a medical examiners report, an air embolism is to blame for 29-year-old Mason Kay's death.

An air embolism is when an air bubble gets into the bloodstream.

Hernando county sheriff's deputies say Kay was returning to the surface of the water when he got stuck in a space too small to escape.

The Sheriff's office has concluded it's investigation.