The Brief A MARTA bus shooting in Sandy Springs left a man and a woman hospitalized Wednesday night after a gun accidentally discharged onboard. Investigators say a bullet passed through the gunman's arm and struck a female passenger in the knee at the intersection of Roswell Road and Glenridge Road. Officers tracked a blood trail to arrest the male suspect, who faces aggravated assault and reckless conduct charges upon hospital release. The injured woman stayed on the bus while the suspect ran eastbound on Glenridge Road toward 5395 Roswell Road. MARTA Police took the lead on the investigation while officers transported the uninjured riders away on a separate bus.