Earlier this month, the girl put bleach in a smoothie she made for her mother. Her mom noticed the bleach smell but assumed that the glass wasn't rinsed properly, according to the Sheriff's Office.
Later in the week, the daughter allegedly put bleach in a water carafe her mother had in the bedroom. When she confronted her daughter, the girl said she wanted to kill her for taking her phone away. While at the Boulder Community Hospital, her mother contacted police to investigate.
Sgt. Bill Crist of the sheriff's office explained that the girl "had pre-planned this a couple different times."