UNDATED (WHDH) — A woman charged in connection with the disappearance of a New Hampshire student changed her plea.

Prosecutors said 19-year-old Kathryn McDonough lied when she told investigators she had no contact with Lizzi Marriott the day police said the UNH student was killed.

McDonough is schedule to enter a guilty plea for lying to investigators and will be sentenced next week.

She is also accused of giving a false alibi for her boyfriend, who is charged with killing Marriott last October. Marriott’s body has still not been found.

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