Episode
She Tried to Get Help… But Her Daughter Killed Her
- Podcast
- TRUE CRIME with Bratterstein
- Published
- May 20, 2026
- Duration seconds
- 2874
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Summary
As always, thank you for hanging out and remembering Yun-Mi Hoy with me today. In August 2013, 18‑year‑old Isabella Yun‑Mi Guzman killed her mother, 47‑year‑old Yun‑Mi Hoy, in the bathroom of their home in Aurora, Colorado, after a long period of escalating conflict between them. Investigators later described how Guzman ambushed her mother in the upstairs bathroom and stabbed her dozens of times in the face, neck, and torso, leaving a scene so brutal that responding officers immediately treated the case as premeditated murder. Neighbors and court records pointed to a deteriorating relationship in the weeks before the attack, with troubling incidents and explicit threats that suggested Hoy had grown increasingly afraid of her daughter and had tried to seek help. The case quickly drew national attention, not only because of the victim’s vulnerability and the ferocity of the attack, but also because of Guzman’s demeanor in court, where her blank, almost detached expression in early appearances spread widely online and became part of the public’s image of the case. As the legal process unfolded, doctors diagnosed her with serious mental illness, and the court ultimately found that she was legally insane at the time of the killing. Rather than receiving a traditional prison sentence, she was committed to a secure state psychiatric hospital, where her confinement and any possible future release depend on ongoing evaluations of her mental state and the risk she might pose to others.