 Jeffree's father never noticed his son was trembled. Glass, who spoke with Dahmer's family for years before meeting the killer behind bars, believes the series' portrayal of the murderous childhood isn't entirely accurate. While Monster portrays Dahmer's father, Lionel, as a concerned father who believes his son is an alcoholic loser, Glass claims this is simply not the case. The father never thought anything was wrong, Glass said, adding that Lionel was an odd man who might not have recognized red flags in Jeffree's behavior. So I do want to say that while the Netflix show was fantastic, it's a scripted show. It's not meant to be a documentary, she added.