A Massachusetts man believed to be responsible for committing numerous armed robberies in the greater Boston area was ordered held on $450,000 bail at his arraignment Friday, according to the Suffolk County District Attorney's office.
Brandon R. McCallop, 29, of Dorchester, was arraigned in Charlestown Municipal Court on three counts of armed robbery while masked.
McCallop was taken into custody without incident by a SWAT team following a lengthy investigation.
Officials with the Suffolk District Attorney's office said McCallop was identified as the man who robbed a Thompson Square liquor store on March 19 and again on June 27. He also robbed a Bunker Hill Street dog groomer on June 15.
In each instance, prosecutors say McCallop covered his face with a mask or scarf and pointed a gun at employees while demanding cash.
McCallop is under investigation for a string of similar armed robberies in Boston, Braintree, Brookline, Cambridge, Everett, Lynn, Revere, and Somerville. Officials said additional charges are expected.
In total, prosecutors allege that McCallop is connected to 24 robberies.
"We continue to work with our partner agencies in and outside Suffolk County to investigate other robberies with similar fact patterns, and we expect additional charges to be filed," said Suffolk County District Attorney Daniel Conley.
McCallop is due back in court Aug. 3.