WEST MIFFLIN, Pa. (AP) – Authorities say a western Pennsylvania man has been arrested after allegedly calling 911 to say he had killed his mother. Allegheny County police say 42-year-old Kenneth Burdick surrendered to officers on the front porch of the West Mifflin home shortly after 7 a.m. Saturday. Investigators said the defendant’s 80-year-old mother was found dead inside the home. County police said there was a history of domestic disturbance calls to the residence but there was no active protection from abuse order. Anyone with information was asked to call county investigators. Burdick was charged with criminal homicide and taken to the county jail to await arraignment. Court documents don’t’ list a defense attorney; a message seeking comment was left at a number listed for the defendant.