What a sad situation. That poor child and the victims. I have had to deal with this in the past. As soon as the guy ran me off the into the emergency lane so he could pass in front of me before construction one lane started.
I immediately called 911.... when out of construction he slowed down for me to pass only to speed up and cut me off again. I was on the phone with 911 the whole time. Mind you I had done nothing to this guy, he was just pissed off and wanted someone to take it out on. Best thing is to ignore them, slow down, let them drive away, and call 911. VSP met him as he got off the St. Albans exit
I also got a follow up call from VSP. Karma struck as it was a VSP officer I had assisted with a case while on-call the week before!