Whenever someone commits a heinous act, we expect them to either receive a death sentence or be imprisoned for life. But some female killers get lighter sentences if they make plea bargains with police, testify against an accomplice, or just happen to be really young at the time of conviction. Because of that, many women who committed violent murders only serve as little as 20 to 30 years before being released and allowed to walk amongst society. Karla Homolka, who was convicted of killing and raping three teenage girls, is now volunteering at an elementary school in Montreal, and there are more killers just like her. Below, six women guilty of brutal crimes who are now free.