The Pierce County Herald reports that 24-year-old Miguel Angel Franco Navarro faces charges of first-degree intentional homicide and mayhem in the death of 37-year-old Israel Valles-Flores. Authorities in Wisconsin say that his weapon of choice was a circular saw and that the slaying unfolded while the two were part of a crew working atop a home outside the city of River Falls on Aug. However, a relative of Valles-Flores told reporters the two men had known each other for years and would frequently poke fun at one another. Navarro is being held in lieu of $500,000 bond and has a hearing set for Monday.