Isabella Guzman charged with first-degree murder in mom's stabbing death

AURORA, Colo. - The 18-year-old suspected of stabbing her mother 79 times in the face and neck appeared in court Thursday to be formally charged with murder.

Isabella Guzman smiled briefly at the beginning of hearing as she listened to her attorney and the judge. 

The judge informed her she will be facing one count of first-degree murder and two counts of crime of violence, a sentence-enhancing charge.

Wearing an orange jumpsuit and shackles on her wrists and legs, Guzman listened intently as the judge started reading the complaint against her. Toward the end of her hearing, Guzman's eyes begin tearing up and she looked into the camera and pointed to her eyes as if to draw attention to that fact. She was also making a face at the camera.

Thursday's morning hearing was pushed back to the afternoon because Guzman refused to leave her jail cell, according to court officials.

Guzman is accused of killing her mother on Aug. 28.

Court documents indicate that Guzman had a contentious relationship with her mother, Yun-Mi Hoy, who had been concerned enough with her threatening behavior to call police that day.

Aurora police officers came to their house and warned Guzman that her mom could kick her out for her behavior.

It seemed to calm her down, but later that night, after her mother went to take a shower after work, Guzman's stepfather heard a thump. He ran upstairs and saw blood oozing out from under the bathroom door.

Court documents indicate that he later saw Guzman leaving the bathroom with a knife in her hand, staring straight ahead and not saying a word.

Her mother was found naked, lying next to a baseball bat, surrounded by blood.

Guzman fled the home, but police arrested her the next day not far from her house, near a parking lot at South Parker Road and South Havana Street.

Outside Guzman's home now, there are two dumpsters in the front yard filled with stuffed animals, jewelry and other belongings. There was also a picture of a younger Guzman on the ground by the dumpsters.  

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