A woman was beaten to death by a man armed with a pipe Wednesday afternoon at an office building in Old City, according to police. The deadly beating happened just after 2 p.m. on the 300 block of Chestnut Street, according to authorities. Police sources told FOX 29's Jennifer Joyce that a man in his 40s took the elevator up to suite 800 and attacked the 32-year-old woman in a shared working space. Dispatchers received nearly 20 911 calls from witnesses as the beating happened, the source said.