Patricia Stallings lost her first son Ryan and was accused of poisoning him. The evidence looked damning, and she was sentenced to life in prison.
Then, while incarcerated, she gave birth to a second son named David, and he started showing similar symptoms. Doctors finally ran the right tests and discovered the truth: both boys had a very rare genetic condition called methylmalonic acidemia (MMA).
It can produce symptoms, and lab results, that were mistaken for antifreeze poisoning. Patricia was innocent the entire time.
She was released in 1991, and the charges against her were dismissed later that year. This became a well-known case in which later scientific testing overturned a wrongful conviction
The case didn’t just expose a tragic personal injustice — it revealed systemic failure across multiple layers: medical interpretation, forensic science, and the justice process itself.
At the time of Ryan’s death, doctors and investigators anchored too quickly on a single explanation: poisoning. Specifically, they believed ethylene glycol (antifreeze) was present in Ryan’s system. That assumption became the backbone of the prosecution. From there, everything else was interpreted to fit that narrative.
