The Unseen Figure

There's a creature going around and controlling/killing kids and teens, you're a detective going over cases. There are 21 cases to go over, and you have a choice to find out where it's going next or let it go and think it's all a dream, each case is told from the person's perspective. Remember that each case might or might not be a lie, also try not to feel bad for the people in the story who are now dead and gone, living their happy life somewhere that doesn't need to be said. But to find out if it's a lie or not that's all up to you.
-T̶h̶e̶C̶r̶e̶a̶t̶o̶r

P.s, before you get confused, this story is about ghosts getting a chance to explain how they died.