NEW : Fourth victim and alleged suspect is in critical condition . Four people were shot at a rural county in North Carolina . Witnesses identified the shooter as 50-year-old Ronald Dean Davis . Three were killed while a fourth was injured . Police later found the suspect at home with a gunshot wound to the head .
NEW : Fourth victim and alleged suspect is in critical condition . Four people were shot at a rural county in North Carolina . Three were killed while a fourth was injured . Police later found the suspect at home with a gunshot wound to the head .