Savannah-Chatham police are investigating a Tuesday night shooting on 1400 block of East 42nd Street that injured a 21-year-old Savannah man. At about 8:30 p.m. metro officers responded to Memorial University Medical Center, where the man sought treatment of a non-life-threatening gunshot wound, said Eunicia Baker, Savannah-Chatham police spokeswoman. He was reportedly shot by a group of unknown males while walking on East 42nd Street, Baker said. Detectives are working to identify suspects.