Police bodycam footage shows the parents of convicted “Hell on Wheels” killer Mackenzie Shirilla arguing with officers shortly after her arrest. In the tense exchange, Shirilla’s father repeatedly calls his daughter a “dumb 18-year-old” while demanding police stop questioning her, as officers explain that she is legally an adult and can decide for herself whether to speak with investigators or request an attorney. Shirilla, 21, is currently serving 15 years to life for the 2022 double murder Dominic Russo and Davion Flanagan.