hoodlum

건달

Fatherhood, he said, had changed him; he stopped being a hoodlum and "settled down" and "became a man".

From 2009: Cameron Todd Willingham was executed for a deadly case of arson. Was he innocent?

https://www.newyorker.com/magazine/2009/09/07/trial-by-fire#:~:text=Fatherhood%2C%20he%20said%2C%20had%20changed%20him%3B%20he%20stopped%20being%20a%20hoodlum%20and%20%22settled%20down%22%20and%20%22became%20a%20man%22.%20