A man in a gas mask burst into Courthouse, with pepper spray and violently assaulting police.

In an alarming incident in Boston, Massachusetts, a man donned in a gas mask burst into the Woburn District Courthouse, unleashing pepper spray and violently assaulting law enforcement officers.

Nicholas Akerberg, is seen storming inside and appearing to pepper-spray the officer. Bystanders are seen in the video moving out of the way as the officers struggle to restrain Akerberg. The officers had to deploy a Taser before he was arrested.