Joshua D. Brown died when his Telsa Model S crashed while on autopilot mode.

His death happened in May but it was announced Thursday by the National Highway Traffic Safety Administration.

It marks the first fatality in an accident involving a car in self-driving mode. 

For more on what happened and what this might mean for the future of self-driving cars, The Ride's Sue Carpenter talks to Libby Denkmann.

To hear the whole interview, click on the blue player above