A gas-mask-wearing assailant stormed into a Massachusetts courthouse Monday and unleashed a tirade, pepper-spraying officers and assaulting bystanders at random in a shocking, caught-on-camera attack.

THIS GUY, THEY’RE BEING HAILED AS HEROES. SURVEILLANCE VIDEO SHOWS THE SUSPECT WALKING UP THE STEPS WEARING A GAS MASK AND SPRAYING PEPPER SPRAY. THE COURT OFFICER AT THE DOOR OPENS IT.

WOBURN, Mass. (AP) — Police in a Boston suburb have arrested a man who they say entered a courthouse while wearing a gas mask and tactical gear and attacked several people with pepper spray.

A Massachusetts man wearing a gas mask and tactical gear was captured on video walking into a courthouse in a Boston suburb and attacking several people with pepper spray on Monday. Nicholas ...

WOBURN, Mass. (WHDH/CNN Newsource/WKRC) - A courthouse had to be evacuated after a man in a gas mask and a helmet attempted to storm the building and attacked a security guard with pepper spray.

Security footage shows man spraying pepper spray at Woburn courthouse Monday A man wearing a gas mask released pepper spray inside Woburn District Court Monday morning, prompting an evacuation.

The dramatic incident unfolded when a frightening figure, sporting a gas mask, a helmet, tactical boots and sunglasses, busted into Woburn District Court on Monday around 10:30 am. Later ...