The Massachusetts Department of Transportation has released a new video showing the moments leading up to a deadly wrong-way crash on the Southeast Expressway late last month.
Investigators say 81-year-old Somerset resident Antone Carvalho was traveling the wrong way when he caused multiple crashes shortly after midnight on June 27.
Riley Sergi, 28, of Haverhill, was killed, and four others were injured in the chain-reaction collisions…