Theories

There are some theories/rumors pertaining to Five Nights At Deathly's. Please note these may not be true.

Who did it?
This is a mystery. In this theory, a few unlikely candidates and likely ones will be shown.

Unlikely Candidates
Deathly, Mousely and Leo are not likely because they were most likely in the parts room at this point.

Candidates
Some may say Toy Deathly did it. Hence the rule, "Don't touch Deathly."

Then, the Unnamed Old Animatronic could have, considering it could have mistakenly activated and bit the person.

Phone Guy's Death
As you may know, Phone Guy dies after Night 6. It is unknown who killed him.

Possible Killer
A possible killer is Deathly, because his jingle is heard. This is possibly impossible, cause Deathly could have been in the kitchen. Mousely is the best possible killer, cause Noobly only comes through the West Ventilation, which means the Left door was closed, and the right was open, so Phone Guy could have been distracted by the jingle, which means Mousely snuck in, which means in rage, Phone Guy throws his monitor on the ground and gets killed.

Rumors
These can never happen and are false.

Freddy Sighting
Some say that at rare times, Freddy from FNaF will appear in the backstage. This is false because Freddy is not in business at the time FNaD takes place.

Shadow Noobly Sighting
Someone posted a fake rumor that they saw Shadow Noobly and it crashed their game. It is false, because the creator never made a Shadow Noobly to begin with.