The flashback scene where a young Terrell Pierce tells his little sister about a boy named Emmett Till who "whistled at a white girl" and was dragged away and shot is unfortunately a true story. Emmett Till was a fourteen-year-old boy who, after flirting with a white woman in a grocery store, was dragged away by men in the night, beaten, mutilated and eventually drowned. This real crime occurred in 1955 and was a huge influence on the U.S. Civil Rights Movement.
The missing girl's house number is 404 which is a HTML code for "Not Found".