PHILADELPHIA (AP) — Two pre-teen boys say they pulled a prank by putting a black doll hanging from a noose above a playground that partly sits on top of a burial site for 5,000 black Philadelphia residents. The doll was discovered Thursday morning and prompted Mayor Jim Kenney to call it "a despicable act." The boys, one black and one white, told WCAU-TV they put the doll there because they thought it would scare people, and that it wasn't about race.