That's just what the previous gaurd said. If everyone in the game was correct, then it actually WAS the employee who stuffed those five kids into the mascots.
where the hell is he implying everyone in the game is correct?
However, wouldn't it make more sense (horror game sense, not real sense) for the mascots to be controlled by the bodies shoved inside them?
no, not at all.
Other than that, there isn't any reason for the mascots to attempt to kill people.
they're not trying to kill you, they're trying to stuff you into a suit. also, the previous security guard says this;
"Uh, now concerning your safety: the only real risk to you as a night watchman here, if any, is the fact that these characters, uh, if they happen to see you after hours, probably won't recognize you as a person. They'll - They'll most likely see you as a metal endoskeleton without its costume on. Now, since that's against the rules here at Freddy Fazbear's Pizza they'll probably try to uh... forcefully stuff you inside a Freddy Fazbear suit.
Um, now that wouldn't be so bad if the suits themselves weren't filled with cross-beams, wiring, and animatronic devices, especially around the facial area, so you can imagine how having your head forcefully pressed inside one of those could cause a bit of... discomfort... and death... Uh, the only parts of you that would likely see the light of day again would be your eyeballs and teeth that would pop out the front of the mask. Yeah, they don't tell you these things when you sign up."
so while they're trying to stuff you into a suit, you're pretty much going to get mutilated, while for children it may end up worse.
also, back to this quote;
That's just what the previous gaurd said. If everyone in the game was correct, then it actually WAS the employee who stuffed those five kids into the mascots.
again, why are you immediately going to this when he isn't even saying that. The phone guy has more experience with the animatronics himself than the police, most likely. the police just needed someone to blame so they wouldn't seem crazy having a paper that's going "police arrest animatronics for slaughtering five children" so they found the one unlucky guy to assume was the murderer.
there's also NOTHING that i've found so far that points to an employee being the murderer if not a random guy