(Lincoln County, OR) -- A Lincoln County man who reported the death of his mother is now facing homicide charges. The sheriff's office says he called 911 Tuesday night to say he accidentally killed his mom. When deputies arrived at the home in Siletz, they found the 79-year-old woman with "injuries consistent with homicidal violence." Her 56-year-old son was arrested on scene, and the Oregon State Police Crime Lab is now investigating.