The man serving a life sentence without parole for raping and killing a University of New Hampshire student will plead guilty to attempted escape from a county jail.
Seth Mazzaglia received the maximum sentence in August for the Oct. 9, 2012, killing of 19-year-old Elizabeth "Lizzi" Marriott of Westborough, Massachusetts.
He was scheduled to go on trial Nov. 3 in Strafford County Superior Court for plotting to escape from the county jail while awaiting trial on the rape and murder charges.
Court officials confirm the 32-year-old Mazzaglia will plead guilty Friday.
Prosecutors say Mazzaglia choked Marriott at his Dover apartment Oct. 9, 2012 after she rebuffed his sexual advances.
A jury convicted him June 27, after hearing 10 days of testimony by Mazzaglia's ex-girlfriend, who witnessed the killing.