Is the director a Stan?

1.name of the character is stan
2.trunk drawning (from the Stan song)
3.Holder
4.Holder get's called ''Eminem wannabe'' ''real slim shady'' ''slim shady''
5.Holder wears OG cooking thing
6.Holder's father left
7.Husband (Seward) convicted for slitting his wife throat (from the Kim song)
8.the pied piper is mentioned in one of the most important Em songs (Lose yourself)
9.All killers and killings make refference to one Em song

What you think? maybe it's just a stretch but i only made this because it only makes sense due to N4.