Other comments reveal that, in fact, this is inside a gated community. Driving your car into a gated community and then into a pond just doesn't add up as an accident.
Ah, OK; well that paints a bit of a different picture: driving through some construction site which might have been in who knows what sort of disarray at the time, without proper roads and hazards/obstacles and whatnot.
He was a mortgage broker. I wonder if he had an active deal, or looking to buy property there.
Yeah that sounds a bit like some Hot Fuzz, "The Greater Good" level stuff going on.