Truth About Isabella Guzman: The Schizophrenic Girl That Stabbed Her Own Mother 151 Times

On August 28, 2013, the police were called to a house in Aurora, Colorado, USA, after she stabbed her own mother 151 times and beat her with a baseball bat.

It is reported that the girl stabbed her mother in the face and neck 79 times before beating her with a bat.

Ryan Hoy, the stepfather of Guzman, called the Aurora Police to their house on the evening of August 28, 2013, when he saw blood pooling under the door of their upstairs bathroom.

Hoy told the dispatch that Isabella threatened her mother, Yun-Mi Hoy, in an email, where she told her that she will pay.

Robert Guzman, the biological father of the murderer, also claimed he had a talk with Isabella before the 911 call.

During an interview with 7News, Robert said:

I went to talk to Isabella and we sat down in the backyard looking at the trees and the animals and I started to talk to her about the respect that people should have for their parents. And I was trying to let her know that she should be obedient to her parents, not rebellious, that she should try to listen more and everything was going fine. In the conversation, I thought that I made progress. But obviously it didn’t do nothing, because hours later, this thing happened.

It is said that Guzman was wearing a bra and shorts when she brutally murdered her own mother.

Hoy, the stepfather, was outside the door trying to open it after seeing the blood coming out.

Upon opening it, he saw his wife lying dead with Isabella standing next to her dead body with a knife. A baseball bat was also present next to the body.

After opening the door, Hoy said that Isabella just walked right past him as nothing had happened.

Hoy rushed to his wife to perform chest compressions, however, he believed that she had already died.

The mother of Isabella was staring blankly ahead.

Yun-Mi Hoy, the mother of Isabella, was lying naked on the bathroom floor, covered in blood, and right next to a baseball bat when the police arrived.

An autopsy said that she sustained 31 stabs on the face and 48 stab wounds on the neck. A total of 151 stabs were there on her body.

Isabella Guzman was found by the police on August 29, 2013, in a nearby parking garage. She was arrested right away.

1st and 2nd Court Hearings

Isabella Guzman was caught smiling towards the camera at the beginning of her hearing as she was listening to her attorney and the judge that was handling her case.

The judge told her that she will be facing 1 count of first-degree murder and 2 counts of the crime of violence.

On her hearing, she was seen wearing an orange jumpsuit and shackles on her wrists and legs. At the end of the hearing, she started to tear up and looked into the camera again to show them.

The second hearing was canceled because Guzman refused to leave her jail cell. She has mental issues.

Guzman And Her Mother

It is reported that Guzman and her mother did not have a good relationship. The court documents indicated that Guzman had a contentious relationship with her mother, Yun-Mi Hoy, who had been concerned enough with her threatening behavior to call the authorities that day.

It was said that on the day of the incident, the mother of Guzman wanted to kick her out of the house because of her behavior.

What Happened On August 28, 2018?

After having an argument with her mother earlier that day, the mother told Guzman that she would kick her out if she does not stop acting weird. This did calm her down, but things were about to get real serious that day.

Later that night, Guzman’s mother went to take a shower after work. As she was inside, Guzman went inside with a knife and bat and battered and stabbed her own mother to death.

The stepfather of Guzman heard screams and thump coming out from the bathroom, so he ran up just to find blood coming out from under the door of the bathroom.

What Did Guzman Get?

Isabella Yun-Mi Guzman did not go to jail after killing her own mother, her insanity plea was accepted by the court.  She also pleaded not guilty by reason of insanity and was sent to a state mental hospital for an evaluation.

A court hearing, a judge reviewed the results of the mental evaluation and ruled that Guzman is not guilty because of the state of her mental health.

She was sent to the Colorado Mental Health Institute of Pueblo.

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