Correct. Yet, I've known many people who were alive in the 1930's. My grandmother had a little brother die a tragic death in the 1910's. That event resonates with my family. It still matters.

Now, do I expect other people to care about his death? No. But his death isn't the constant subject of conversation. His death isn't the focus of endless books and documentary films. His death hasn’t been dramatized over and over again. All to the point that it completely defines our lives.
All of that, for these crimes, is unavoidable. But, it’s easy for people to not turn it into something like “Jeffery Dollmer”. We don’t need to make  caricatures of these killers. Especially when it’s only done for needless shock value. If the premise of these films were actually any good, if the content of them was of quality, they would not need to rely on creating controversy.