HUDSON, Wis. (AP) - The mother of a 14-year-old Wisconsin girl accused of slitting her brother's girlfriend's throat says the family saw no signs she was planning anything violent.

Prosecutors charged Kali Jade Bookey on Thursday with attempted first-degree intentional homicide. Investigators say she told them that she attacked her brother's 15-year-old girlfriend as she slept in her home in New Richmond on Wednesday morning.

According to a criminal complaint, Bookey told investigators she slit the girl's throat with a shard from a bowl she had broken over the girl's head. Bookey said she hated the girlfriend because the girlfriend made her brother happier than she did.

Bookey's mother, Dawn Bookey, told The Associated Press in a brief telephone conversation Friday that there were no signs her daughter was planning to attack the girl and that her family is very, very sad.