Albert Fish was a man who lived a long time ago, and he wasn't very nice. He did bad things to people that made them very sad and hurt them in different ways.
Albert Fish did a lot of really strange things, like writing letters to children's parents, saying really terrible things about how he wanted to hurt their kids. He even ate parts of some people's bodies! That's something that we don't do, because it's really gross and can make us sick.
Some people think that Albert Fish was mentally ill or had something wrong with his brain. Others think that he was just a really mean person who enjoyed hurting others. Either way, he did some really scary things and we should always be careful around people we don't know, so that we stay safe.