Insufferable Teen Horrifies Her Town After Murdering Two Friends

From Coffeehouse Crime

This is Mackenzie Shirilla… who has become better known as one of America’s most insufferable young killers. You may have heard her name before… but do you really know the full story? In the aftermath of a horrifying tragedy, Mackenzie managed to fool millions. Countless people believed that she was simply the driver caught up in a terrible accident. However, those closest to her suspected there was far more beneath the surface… And they were right. Through some remarkable technical investiga...