The Danes were unaware of the fact that the song would bring them mass disaster. Every time Grendel tried to befriend the Danes, they would run away, hide, or even attack him. The men that Grendel attacked were those who were particularly hateful towards Grendel; as for Grendel, they were the real villains who wanted to kill him. The innocent ogre tried to be friendly and dissuade them from bullying, but the arrogant Danes didn't even try to listen. AS. How did Grendel become a murderer and psychopath? It is true that the behavior of Grendel, who destroyed Herot Hall for twelve years and killed numerous people, cannot be completely justified, but those who made Grendel become a psychopath could have been saved if they had been a little kinder and more loving with him. For example, in Korea there was a famous serial killer, Yoo Young-Chul, who is a psychopath and killed about ten people. After receiving a life sentence, he said that when I was young, I was born and raised in a poor family. My homeroom teacher in my elementary school was an abusive teacher. But…. Once I didn't do my homework and couldn't bring supplies. If my homeroom teacher