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Tesla wins first U.S. Autopilot trial involving fatal crash
(www.cnbc.com)
This is a most excellent place for technology news and articles.
One source says his BAC was 0.05%. California's legal limit is 0.08%. That doesn't exclude it from being a factor, just pointing out the guy wasn't blitzed out of his mind or anything.
The part about being unclear if AP was engaged is quite suspect though, given they have been able to definitively say in other crashes whether it was on or off and even if it had been disengaged moments prior to the accident.
Pure speculation, but I'm guessing the wreck + vehicle fire may have destroyed any computers/logs.
Assuming that there's an actual valid reason that it's unclear whether the vehicle was in autopilot or not.