Metro police are investigating an overnight shooting in east Nashville. The shooting happened in the area of Joseph Avenue and Grace Street. Police said a 20-year-old man and his cousin were walking home from the store before midnight when they heard several shots. The 20-year-old was struck in the leg but was able to run home and call police.He was taken to Vanderbilt University Medical Center with non-life threatening injuries.The victim did not see who was shooting. Officers did find some shotgun shells at that intersection.The investigation is ongoing.