The Ohio Supreme Court has declined to review the latest appeal filed by Mackenzie Shirilla, leaving intact her convictions and sentence for the 2022 crash that killed her boyfriend, Dominic Russo, 20, and their friend, Davion Flanagan, 19. The court’s decision marks another legal setback for Shirilla, whose case has drawn nationwide attention because prosecutors argued the collision was an intentional act rather than a traffic accident. With the appeal denied, Shirilla will continue serving her sentence at the Ohio Reformatory for Women and will become eligible for parole in October 2037.
The criminal investigation began on July 31, 2022, after emergency responders were called to a devastating crash in Strongsville, a suburb of Cleveland. Authorities found that a sedan had slammed into a brick commercial building at an estimated speed of nearly 100 mph. Dominic Russo and Davion Flanagan died from catastrophic injuries at the scene, while Shirilla survived despite suffering multiple injuries. Because there were no signs of braking before impact, investigators immediately launched an extensive crash reconstruction to determine whether mechanical failure, medical issues, or driver actions had caused the collision.
Detectives from the Strongsville Police Department worked alongside crash reconstruction specialists to analyze surveillance video, data recovered from the vehicle, cellphone records, and the physical evidence left at the scene. Prosecutors later argued that the investigation showed Shirilla deliberately accelerated toward the building without attempting to avoid the collision. According to evidence presented during trial, the vehicle reached approximately 100 mph seconds before impact and showed no indication that the driver tried to slow down or steer away.
The prosecution also presented evidence regarding Shirilla’s relationship with Russo, arguing that tensions between the couple in the days leading up to the crash provided a possible motive. Defense attorneys disputed that conclusion, maintaining that prosecutors relied on circumstantial evidence and arguing that Shirilla may have experienced a sudden medical event or loss of consciousness before the collision. Medical experts testified on both sides regarding the possibility of an underlying health condition, making the cause of the crash one of the central issues during the trial.
In August 2023, following a bench trial, a Cuyahoga County judge found Shirilla guilty of murder, aggravated vehicular homicide, and related offenses. She was sentenced to two concurrent prison terms of 15 years to life. The judge concluded that the evidence demonstrated beyond a reasonable doubt that the crash had been intentional. Since the conviction, Shirilla’s attorneys have pursued multiple appeals, challenging both the factual findings and the legal conclusions reached during the trial.
Appellate courts consistently upheld the convictions, rejecting arguments that the evidence was insufficient or that medical issues undermined the prosecution’s theory. After unsuccessful appeals in lower courts, Shirilla petitioned the Supreme Court of Ohio to review the case. On June 23, 2026, the state’s highest court declined jurisdiction, leaving the conviction and sentence unchanged. The court had previously declined to hear an earlier appeal, and another filing had been rejected after it was submitted beyond the required deadline.
With the Ohio Supreme Court declining further review, the criminal case has reached another significant milestone, although additional federal legal remedies may still be available. For investigators, the case remains a notable example of how accident reconstruction, digital evidence, and forensic analysis can transform what initially appears to be a fatal traffic collision into a homicide prosecution. For the families of Dominic Russo and Davion Flanagan, the court’s latest decision represents another affirmation of the verdict reached after one of Ohio’s most closely watched criminal trials in recent years.
