17 Yr Old Mackenzie Shirilla Kills BF & Friend In Car Crash - ALL Her Private Snapchat Messages

Investigators obtained a massive amount of Mackenzie Shirilla's digital data, including 31,000 pages of text messages, 4,000 videos, and 4,896 photos. This data exposed a pattern of reckless driving, frequent drug use (smoking weed from a foot-long bong, often while driving), road rage, and a self-absorbed, aggressive personality. She frequently posted videos of herself driving while distracted, under the influence, or performing dangerous stunts like driving with her feet off the pedals.

The podcast details numerous examples from her Snapchat, Instagram, and TikTok, including videos of her driving 93 mph, smoking blunts while driving, and ranting about other drivers. Police reports also documented disciplinary issues at school, including verbal abuse towards teachers.

Days after the crash, while being questioned by police in the hospital, Mackenzie spoke rapidly to her mother in an unidentified language. A language expert later determined it was not a natural spoken language but 'carny talk,' a coded form of English. Prosecutors decoded the conversation, alleging Mackenzie asked her mother, 'Can we just tell them I had a seizure?' This suggested an attempt to fabricate an explanation for the crash.

The police report documented the officer's inability to identify the language. A university's Department of World Languages chair confirmed it wasn't a natural language, and Mackenzie's father later identified it as 'carny talk.' The decoded message was presented by prosecutors.

Data from the car's black box revealed critical information: 5 seconds before impact, the gas pedal was 100% depressed, and the brake pedal was never touched. The car averaged 80.51 mph. Additionally, the steering wheel made a significant 142-degree turn, and the gear shift was manually moved to neutral and then back to drive 1 second before the crash. These actions strongly suggested intentional manipulation rather than an accidental loss of control or medical emergency.

Police reports and expert analysis of the black box data confirmed 100% acceleration, no braking, specific steering movements, and manual gear changes.

Mackenzie's defense claimed she fainted due to Postural Orthostatic Tachycardia Syndrome (POTS). However, medical experts and the POTS community largely dismissed this, noting that POTS primarily affects heart rate upon standing and fainting is rare. They argued that a POTS episode would likely cause the body to go limp, not to floor the gas pedal and maintain steering control. Mackenzie's post-crash medical records also showed elevated blood pressure and a normal heart rate, inconsistent with a POTS-induced fainting event.

The podcast cites the POTS subreddit, where users expressed strong disbelief, stating a POTS episode would cause the 'exact opposite' effect. Mackenzie's mother's lack of detailed knowledge about POTS in court further undermined the defense, and medical records showed elevated blood pressure and normal heart rate post-crash.

Text messages and DMs between Mackenzie and her boyfriend Dom revealed a highly toxic and abusive relationship. Mackenzie frequently made demands, used derogatory language, and issued ultimatums, often threatening to break up over trivial matters like Dom not providing weed or not answering her calls within seconds. She exhibited extreme possessiveness, anger, and a lack of empathy, consistently blaming Dom for their problems.

Numerous text message exchanges are detailed, showing Mackenzie's demands for weed, threats to 'kill' Dom's best friend Blair, and her constant cycles of breaking up and making up, often with countdowns and threats to 'burn scrapbooks' or 'text new people.' Dom's friends reported he 'could do way better' and that Mackenzie was 'kind of crazy.'