Investigators say Cassidy’s roommate tipped them off about an AK-47 and 9 millimeter pistol in their apartment.
Cassidy was arraigned Thursday in New Bedford District Court.
WBZ-TV’s Christina Hager reports.
The 26-year-old is also accused of assaulting his roommate. Police say he will be charged at a later date with assault & battery with a dangerous weapon and assault and battery on a household member.
Cassidy, who is from Spring, Texas, had been wanted in his home state for possibly possessing bomb-making materials.