Texas outlaws allegedly came to Boston for Celtics game — and stayed to commit crimes

A band of Texas outlaws traveled to Boston in May for a Celtics playoff game, then launched a two-day crime spree, using crowbars and a sledgehammer to steal safes and ATM machines full of cash, a Suffolk County prosecutor said Thursday.

“They know what they’re doing,’’ Andrew Doherty said during an arraignment in Suffolk Superior Court for one of the suspects, Fredrick D. Williams, a 29-year-old Texan with a lengthy criminal record. “These men act as if this is their business.’’

Williams pleaded not guilty to 27 breaking-and-entering and larceny-related charges stemming from the brazen scheme. He and four associates allegedly stole three vehicles and broke into six stores in Greater Boston on May 18 and 19.