Phone guy hired Child Killer

Quick note
This page has connections with THIS theory.

How it happened
The phone guy had interest in immortality through metal. But not wanting to be fired, hired the Child Killer as a security guard to do it for him. He started with 2 kids but those expirements messed up. One causing a kid to be put in foxy, the other Golden Freddy. The children after possesing the bodys grew angry and fleed, foxy and his anger later caused the bite of 87'. The next 3 kids became Chica,Freddys, and Bonnie, and while these more succesful were not perfect. The 3 kids used enjoyed the band at day time and simply did that. But due to them having a hatred for guards (the hatred for guards is because child killer was a guard) after dieing attempt to kill guards, doing the same they had happen to them, stuffing guards in suites. At the same time the idea of them thinking you are a exo skeleton was made up by Phone Guy to hide the truth. Phone Guy then went through weeks studing there movment. He then started recording messages for guards in the future, Including Mike. Phone guy had under estimated the robots thought and one of them, presumably Freddy, broke the door and managed to get in and while Phone Guy was recording the night 4 message was killed.

Unawnsered questions

 * Why would the child killer have done this? Wouldn't he have known he would eventually be arrested?
 * Why did the killer not confess that phone guy forced him to do this?