Stanley Isaacs, a 60-year-old man celebrating his anniversary with his wife, was killed in a devastating hit-and-run in Laguna Beach, California, suffering what prosecutors described as an internal decapitation. The driver, now 22-year-old Sysillia Kianna Morrison Montes De Oca, was convicted of gross vehicular manslaughter and other charges after she struck the couple and fled the scene, leaving Isaacs to die on the street.
Background
The tragedy unfolded shortly after 9:30 p.m. on Aug. 11, 2022. Isaacs and his wife had just finished dinner at a nearby restaurant to mark their anniversary. As the couple crossed the street, Montes De Oca, who was 18 at the time, slammed her Volkswagen Jetta into them. While Isaacs was pronounced dead at the scene, his wife survived but suffered injuries. Montes De Oca did not stop to render aid.
According to courtroom reports from the Orange County Register, Isaacs sustained catastrophic injuries, including an internal decapitation, a skull fracture, a snapped spine, and smashed ribs. Following the crash, Montes De Oca reportedly returned to the scene but did not turn herself in immediately. She also searched for news stories regarding fatal hit-and-runs. Investigators noted that she had smoked marijuana earlier in the day and admitted to passengers in her vehicle that she was speeding up moments before the collision.
The Charges
Montes De Oca was convicted of gross vehicular manslaughter, hit-and-run with serious injury, and failing to stop at a hit-and-run. Deputy District Attorney Justin Kim argued during the trial that the incident was not an ordinary mistake, citing the driver's behavior after the crash. Her defense attorney countered that Montes De Oca panicked and left at the urging of her friends, noting that she eventually surrendered to police about two weeks after the incident and that her exact speed at the time of impact remained unclear.
Key Takeaways
- Stanley Isaacs, 60, was killed in a hit-and-run while crossing the street with his wife in Laguna Beach.
- Driver Sysillia Kianna Morrison Montes De Oca was convicted of gross vehicular manslaughter and hit-and-run charges.
- Isaacs suffered internal decapitation, a skull fracture, and a snapped spine.
- Montes De Oca fled the scene, hid her car, and turned herself in two weeks later.
- Sentencing is scheduled for Nov. 13.
What's Next
The court will determine Montes De Oca's punishment at the sentencing hearing scheduled for Nov. 13. Given the convictions for gross vehicular manslaughter and hit-and-run charges involving a fatality, the judge will review the severity of the injuries, the driver's post-incident conduct, and any mitigating factors presented by the defense before issuing the final sentence.