HILLSBORO, Mo. (KTHV) - An Illinois man pleaded guilt to the murders of Jill and Tom Estes of Sherwood in 2008. Nicholas Sheley was serving six life sentences in Illinois, but added another in Missouri today for the double murder.

The St. Louis Post-Dispatch reports that police say the couple was attacked outside a hotel in Festus, Missouri after leaving a graduation party in 2008.

Sheley was arrested in July 2008 in Granite City, Illinois after a nationwide manhunt. The killings are drug- and alcohol-induced according to prosecutors.