What gender is Mangle? Culprit of the Bite of '87?

Well, these are the most asked questions ever. And a lot of people want to know what I think.
Mangle
Well I'm on the tip with this one. I ship Mangle with other characters as a guy, and I call Mangle a girl. I ended up splitting her/him/it into 3 "OCs". Mangy=boy(Mane-gee) Mangle=girl Foxi=girl
The Bite of '87
Well, a lot of people speculate it's Foxy or Mangle, but I say Freddy. Why? Well, when you see Foxy and Mangle's snouts UP CLOSE, the teeth are actually blunt. They just look sharp from afar. So the damage had to have come from the inner jaw, or the endo skeleton. Foxy and Mangle's "outer jaws" are big and most likely will block the endo skeleton from doing any damage to anything. Freddy's, however, is close to his snout, so it will make the bite UP CLOSE AND PERSONAL. But that's just my opinion. What about the OTHER animatronics? Well, I'm not taking it from the withered animatronics by the way since they can't wander out of Parts and Service, the toy animatronics are out of the question since their endos are WAY back that you can't see it and Toy Chika's might be sticking out(without the beak) but she wears her beak in the morning. Bonnie might be the culprit but we don't see HIM having any hand marks on him, hint hint. Chika can't be the culprit either because she has a beak too and her mouth it WAY back. Foxy, I've already covered this. So it HAS to be Freddy. Just because you're gonna argue it might be a withered animatronic, W. Chika can't move her mouth since it's dislodged, Foxy STILL has blunt teeth, Bonnie doesn't have a FACE, and Freddy makes a biting motion which makes you think.