Emergency responders say they found a man suffering severe cuts to his neck and face when they responded to a call in a rural area near River Falls Monday. Investigators say a co-worker apparently attacked 37-year-old Israel Valles-Flores with a circular saw as they worked on a roofing job. Valles-Flores was dead at the scene. Twenty-four-year-old Maguel A. Nabarro was taken into custody and is being held on suspicion of intentional homicide in the Pierce County Jail. Both men are from St. Louis, Missouri.