Already wrong in the first episode
Years ago I listened to an interview with the detective who handled Dahmer's case from the start. The black man who ran into the street handcuffed didn't even want to go back to Dahmer's place, and didn't make any serious allegations.
All he wanted was for the cops to take off the handcuff Dahmer put on him. They didn't have a key for the brand Dahmer used so they took the guy back to the apartment to get them off. That's when they busted Dahmer by snooping around while he pretended to look for the key (I say pretended because he didn't actually have a key - he would retrieve the cuffs by cutting off his victim's hands after they were dead - yikes).
If the cops had had a key, nothing would have come of the escape.
Why lie about this? What does that say for the rest of the show?
Edit: I'm not putting any blame on the black guy for not wanting to make more of it. According to the detective he didn't know Dahmer had killed anyone or that he planned to kill him. He simply got freaked out when Dahmer cuffed him and he wanted out. That lead to a scuffle and Dahmer pulling a knife. As bad as that is, I can't blame him for not wanting to get his life legally tangled up in what for all he knew was just a situation with some drunk idiot who went too far.
My point for the post is why change what actually occurred? After watching that scene I was already annoyed with the show for making shit up that didn't happen.