I've seen updates for several days on this story, and it looks like the police are making progress. Multiple people have reported that while driving a night they came upon debris in the road, and had to swerve to avoid hitting it. In one case the driver could not successfully avoid the debris and wound up in a ravine. Each driver reported a man walking up to them after the accident. The immediate speculation being that the man was putting the debris into the road to cause the incidents.
https://www.wowt.com/2024/12/18/sea...estigation-into-bennington-crashes-continues/
https://www.wowt.com/2024/12/18/sea...estigation-into-bennington-crashes-continues/