Unfortunately there was a fatal car accident on May 7th that involved a Tesla Model S in autonomous driving mode.
It appears that the accident was a combination of unfortunate circumstances and timing. “The vehicle was on a divided highway with Autopilot engaged when a tractor trailer drove across the highway perpendicular to the Model S. Neither Autopilot nor the driver noticed the white side of the tractor trailer against a brightly lit sky, so the brake was not applied.
For the past seven years there have been about 33,000 motor vehicle deaths per year in the US, which works out to about 90 per day. Every one is a tragic loss of life but it is worthwhile to keep in mind that so far there has only been one fatality that has occurred in a Tesla in Autopilot mode.