The 2009 Taconic State Parkway crash was a traffic collision that occurred shortly after 1:30 p. m. on Sunday, July 26, 2009, on the Taconic State Parkway in the town of Mount Pleasant, near the village of Briarcliff Manor, New York. Eight people were killed when a minivan being driven by 36-year-old Diane Schuler traveled 1. 7 miles in the wrong direction on the parkway and collided head-on with an oncoming SUV. The deaths included Schuler, her daughter and three nieces, and the three passengers in the oncoming SUV. The crash was the worst fatal motor vehicle accident to occur in Westchester County since July 22, 1934, when a bus accident in Ossining claimed 20 lives.