A follow-up on this horrifying case out of Colorado, where a 19-year-old woman, charged with first-degree murder after stabbing her mother over 150 times, has pleaded not guilty by reason of insanity.
Judge accepts Isabella Guzman's insanity plea; accused of stabbing mother 151 times
Isabella Guzman, who was 18 at the time, used a knife to stab her mother Yun-Mi Hoy in the face, neck, arms and torso in the bathroom of their home on August 28, 2013. According to police, 151 individual stab wounds were discovered on Hoy's body. She was also beaten with a baseball bat.
Guzman, who was arrested and charged with murder, was later diagnosed with paranoid schizophrenia. Based on evidence, the district attorney determined that Guzman did not know right from wrong.
