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JEFFERSON CITY, Mo. — Missouri teenager, Alyssa Bustamante admitted Tuesday that she killed her nine-year-old neighbor by strangling, cutting her throat and then stabbing Elizabeth Olten.

Bustamante’s admission was part of an agreement with prosecutors who dropped the first-degree murder charges that would have sent her to prison for life without the chance of parole if convicted, accepting instead her second-degree murder guilty plea. The amended charge is punishable by 10-to-30 years in prison or life with the possibility of parole.

An attorney for the mother of Elizabeth Olten, killed in 2009 near Jefferson City says the family does not believe justice was fully served.

Bustamante’s public defender, Charlie Moreland said he believes the charge is appropriate for his client, who told police after her arrest that she killed Olten because she wanted to know how it felt to kill someone.

“What we hope to do at the sentencing hearing is show Judge Joyce a more complete picture of who Alyssa Bustamante is,” Moreland said. “Right now, all the people know is the girl in the green jail jumpsuit and the Facebook pictures. That’s all the public knows about her. She’s a much more complex person.”

A sentencing hearing is set for Feb. 6.