A gas-mask-wearing assailant stormed into a Massachusetts courthouse Monday and unleashed a tirade, pepper-spraying officers ...

Video obtained by WCVB shows the moments when a man in a gas mask armed with pepper spray canisters stormed the lobby of a ...

Police in a Boston suburb have arrested a 28-year-old man who they say entered a courthouse while wearing a gas mask and tactical gear and attacked several people with pepper spray.

Nicholas Akerberg entered the courthouse in a helmet, gas mask, tactical boots, and sunglasses, Middlesex DA Marian Ryan’s ...