Traffic video of his SUV shows he was following a minivan and was not speeding.
More likely is that he took his eyes off the road for a couple of seconds, then collided with the island.
Absence of skid marks and the heavy damage tells me that he mistakenly stepped on the gas instead of the brake and accelerated into the side of the hill.
Thanks for the clarification. Strange, just a random accident. If he was under the influence I think we would have heard about that by now.
Car he was driving has a black box...
ALL will be revealed.