Authorities alleged that 29-year-old Shane Cautillo made alarming statements about bombs, weapons and extremist groups while riding a train from Newburyport, Massachusetts, to Boston on June 27. WATCH HERE WATCH HEREOne passenger, named Liam, said those comments prompted riders to alert the train conductor. Liam said he first met Cautillo while waiting for the train at the Newburyport station before the two boarded. "He starts kind of saying some odd things about revolutionary things and weapons and explosives," he said. "People were worried and taking photos, and I guess he was saying things on the train.