PHILADELPHIA (AP) — Authorities in Philadelphia say a man has been killed and five other people were wounded in a shooting at a graduation party. It’s not yet known what sparked the shooting, which occurred around 10 p.m. Sunday. Authorities say a 24-year-old man who was shot in the back died at a hospital. Four teenagers were shot in the legs or ankles and were in stable condition. A 21-year-old man was shot in his elbow and was also stable.