A man accused of gunning down a Camden resident just over one month ago on a city street was arrested this week, authorities announced Tuesday. Officers from the Camden County Police Department responded to a report of shots fired on the 1000 block of Liberty Street at 11:35 p.m. on June 28, according to a release from the Camden County Prosecutor’s Office. Police found Donald Green, of Camden, suffering from multiple gunshot wounds, authorities said. He was rushed to Cooper University Hospital, the office said. He was pronounced dead there at 12:22 a.m. the following day. Allan Watson, 32, of…