JACKSONVILLE Fla. -- After spending hours scouring the bottom and the perimeter of a pond for clues, FHP is still trying to figure out why 55-year old David Brown's SUV missed the exit off I-295 and plunged into the water.
The SUV didn't leave any skid marks as it veered off course. Investigators say that's a sign Brown may have fallen asleep at the wheel.
"Just before sunrise, people often go to sleep that's sleep. That's the time they tend to do that that, so it's very possible that we have someone who fell asleep," said Capt. Keith Gaston with FHP.
As divers searched for pieces of Brown's SUV in the depths of the pond, neighbors searched for answers. They tell Action News the retired marine Marine lives alone in Jacksonville.
"He was a quiet good ol' boy kept boy. Kept to himself and didn't bother anybody and nobody bothered him," said a neighbor.
Police say like a true Marine, it appears Brown fought until the very end.
"He was located in the back of the vehicle," says Sgt. Dylan Bryan with the FHP. "(It was) an attempt to maybe escape."