Infamous for their good looks and gruesome crimes, Paul and Karla are dubbed the Ken and Barbie Killers and become one of the most notorious killer couples in Canadian History.

Sources:

https://criminalminds.fandom.com/wiki/Paul_Bernardo_and_Karla_Homolka

https://www.newsweek.com/ken-barbie-killers-paul-bernardo-karla-homolka-discovery-plus

Murder made me famous