Michael Royce Sparks, 62, has been charged with the murder of his neighbors, Daniel Menard, 79, and Stephanie Menard, 73, who disappeared from their home at the Olive Dell Ranch nudist resort on August 24. The Menards' car was found abandoned, and their personal belongings were left at home, raising suspicions among friends and family. Police arrested Sparks after a standoff where he attempted suicide; human remains believed to be those of the Menards were found in a concrete bunker under his house. Sparks' arrest followed a tip from a family member who reported his confession to the murders. Authorities are still working to positively identify the remains, and Sparks is facing potential death penalty charges due to the special circumstances of multiple homicides.