‘You Have 3 Seconds to Answer': The Toxic Countdown Texts Before Mackenzie's Deadly Crash

19 year old Davion Flanagan’s family and 20 year old Dominic Russo’s family want to know what the hell happened that morning. How could 17 year old Mackenzie Shirilla drive her car straight into a brick building at 100 mph killing their two boys? How could she be the sole survivor? This is the case of Mackenzie Shirilla who used a high speed, intentional mot…