Answer:
As Will rides the elevator to the lobby, he is joined by several ghosts: Shawn's friend Buck who was killed by Frick in a gang initiation, Will's childhood friend Dani who was killed when they were eight, Will's Uncle Mark who died in a bad drug situation, Will's father Mikey who tried to kill Mark's killer and died. They all show him that revenge leads to death.
Step-by-step explanation:
The ending is ambiguous and the reader does not find out if Will follows through on his revenge plot. It is clear from the ghosts’ stories and Will’s code of justice that if he takes vengeance, he’ll end up dead like the ghosts. It could be insinuated that they are asking Will if he’s ready to join their ranks by making the same mistakes. Will learns that violence is cyclical and feeds itself. Long Way Down has a heavy message but shows that Will has the power to choose a different path. Even though he and his family have been wronged, the themes within the story make it clear that revenge is never the way out. And, most importantly, Will is the only person in charge of his own destiny. The ghosts give him the tools to determine his fate, but only he makes his own destiny.