As one-half of the notorious Ontario serial killing couple nicknamed Ken and Barbie in the media, Karla Homolka is not likely to ever live down her reputation. That’s why, when the public got wind that she was volunteering at a Montreal school, the outrage was real. Homolka may have technically done the required time for her crimes, but she’s still a murderer in the public’s eyes—even though legally speaking, she was only convicted of manslaughter.

Here’s how Homolka went from a teenager from St. Catharines to Canada's public enemy number one: