Answer
The Ken and Barbie Killers, also known as Paul Bernardo and Karla Homolka, gained notoriety in the media for their heinous crimes. They were a couple who committed several murders and sexual assaults in Ontario, Canada, during the 1990s. The couple's crimes shocked and horrified the public, and they became widely known as the Ken and Barbie Killers due to their seemingly ordinary and all-American appearance.