WASHINGTON (AP) — The driver killed when his Tesla sedan crashed while in self-driving mode was traveling at 9 mph above the speed limit just before hitting the side of a tractor-trailer, federal accident investigators said Tuesday. Data downloaded from the Tesla Model S shows the vehicle was traveling at 74 mph in a 65-mph zone on a divided highway in Williston, Florida, near Gainesville, the National Transportation Safety Board said in a preliminary report. The driver, Joshua Brown, 40, a tech company owner from Canton, Ohio, was using the sedan's cruise control and lane-keeping features at the time, the report said.Read more on NewsOK.com