Acting on an anonymous tip Thursday, Radnor Township police were able to arrest a suspect in a November armed robbery. Daniel P. Whitman of Charles Drive, Bryn Mawr, was taken into custody for having a small amount of drugs. He was also being held on charges in unrelated cases, police said. In November, Whitman allegedly held up a woman and child at the Bryn Mawr 7-Eleven. - Mari A. Schaefer