(Portland, OR)  --  Police continue to investigate a deadly shooting in Northeast Portland.  Authorities say officers responded late Saturday night to reports of shots fired, and found a man dead next to a car in the 21-hundred block of Northeast 81st Avenue, in Portland's Madison South neighborhood.  Police say they found evidence of gunfire at the scene, and witnesses said they saw a car leave the scene after hearing the shots.  No suspects have been identified.