"Walt is the special one. During one season, when they had Walt they had him locked up and while he was locked up he could kill birds flying outside when he was upset and cause other things to happen, i.e. make the computer allow his father know where he was located.

When Ben and Juliete were walking down the stairs where Walt was being held, they found all these dead birds. Juliete made the comment that the boy was very powerful."