Tesla executives have claimed that there was a driver behind the wheel when one of the company's cars was involved in a crash that killed two men. This would be an ordinary assumption for other cars, but investigators' initial probe concluded that nobody was driving the Tesla Model S – which is fitted with self-driving, 'Autopilot' capabilities. "We have witness statements from people that said they left to test drive the vehicle without a driver and to show the friend how it can drive itself," Mark Herman from Harris County Precinct 4 was quoted saying in the report. The police were "100 per cent certain that no one was in the driver's seat," Herman told a Houston radio station, according to the Washington Post. One of the victims was found in the passenger seat, while the other was in the back seat, according to the police.