Rozelle "Kept telling me, 'Dad I'm going to graduate,'" Green's father, Rozelle Green, Sr., said Friday.
Green was shot to death outside his girlfriend's house Wednesday night.
"I ran to where he was at and when I got there he was laying out in the grass, and they said he had no pulse," his father said.
Wilson added Rozelle recently received a reward from school for "Most Improved," saying the school's new principal made an impact on him. "He really did help my son out," she said.