Quadruple murder suspect, Benjamin Roy Naylor, pleads guilty, avoids death penalty

The man accused of killing four people across two southern Idaho counties has accepted a plea agreement to avoid the death penalty, the Cassia County and Minidoka County Prosecuting Attorney's Offices announced today. On December 22, 2025, Benjamin Roy Naylor, 56, pleaded guilty to four counts of first-degree murder for a killing spree that spanned two southern Idaho counties in exchange for four consecutive life terms without the possibility of parole.

"This plea agreement represents justice for the victims and their families. While no outcome can undo the devastating loss these families have endured, this resolution ensures that Benjamin Roy Naylor will never walk free again. The victims' families showed tremendous courage throughout this process, and their input was critical in reaching this agreement," said Cassia County Prosecuting Attorney McCord Larsen.