We know that Deadman Wonderland is a brutal prison for convicted criminals.
And at various points in the show, it is revealed how each of the main characters ended up there. (what crime they were convicted of)
But how did Shiro get there? Is it ever revealed what Shiro did to end up in that prison?
We know that Shiro was Ganta's childhood friend. So that means that she started off outside in the normal world. But are there any clues to what brought her into Deadman Wonderland?