(CNN) -- An Ohio man pleaded guilty Thursday and was sentenced to life without parole for killing and dismembering a woman, her son and her friend and hiding their bagged remains in the hollow of a tree. Matthew Hoffman, 30, pleaded guilty to all 10 counts, including three counts of aggravated murder and the kidnapping of one of the victim's 13-year-old relatives, in Knox County, Ohio, in November. According to his attorney, Hoffman said he committed the crimes after encountering Tina R. Herrmann when he entered the house during a burglary attempt. But the sister of Stephanie Sprang, one of the other victims, said there was no excuse for him killing Herrmann and waiting for the other victims to come to the house.
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Matthew Hoffman enters guilty pleas in November killings
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He admitted to killing two women and an 11-year-old boy
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Defendant said he entered home to commit theft
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He also kidnapped a 13-year-old girl from the home
Besides the aggravated murder, aggravated burglary, kidnapping and rape charges, Hoffman faced a charge of tampering with evidence for allegedly removing some clothing and bedding from @placeholder's residence in order to hinder the investigation, authorities said.
In the statement, the teen related memories of the victims and said she's no longer frightened of @placeholder.