Everything fake! This is all part of the lore.

First page of the document

"1984 missing children incident. -

William Afton found suspicious for the dissapearence of 6 children in the local pizzeria "Freddy Fazbear's Pizza World".

The recently instaled security cameras show the suspect talking to the kids in an old "springlock" suit that was later found on the backstage

The children were later found after a month of searching inside the animatronic mascots Freddy, Chica, Bonnie and Foxy, because of this incident, Mr.Afton, a local teacher and owner of Fazbear's got detained.

1985 - animatronic mascot bites a kid. -

After being harrassed by 4 masked kids (names later revealed) a kid named Oswald Smith ended up running into the Backstage and when trying to hide inside an old animatronic, ended up accidentaly reactivating the mascot and got bitten in the frontal lobe area, minor injuries detected, no brain damage.

The 4 kids were later punished and Oswald survived.

Later, Oswald's family moved out of town after a suspicious event at Jeff's Pizza.

1986 Dissapearence of Michael Afton. -

After his Father's sentence to 2 years of jail, the 16 years old child named Michael Afton became a problematic kid, bullying and harrassing other (mostly younger) kids, including his own brother Garret Afton.

Later in 1985, after the bite incident, Michael was punished with a year on a problematic kid's school.

Where he later dissapeared.

Main suspect is William Afton, who came out of jail 4 days before Michael dissapearence."