Shooting Investigation Family Homicide Motive Unknown Stabbing University of Idaho Students Domestic Homicide Family Members University Students Victims Rural Areas Legal Proceedings Gun Violence Home Invasion Central Illinois Sleepover Idaho College Students Unidentified Victims University of Idaho Murders Case Victims' Families Frozen Bodies Suspect Capture Off-Campus Housing Quadruple Homicide Homicide Victims Staged Crime Scene Motive Oklahoma Shooting Rampage Execution-style Killings Joliet Homicide University of Idaho Killings Arrests Suspects Student Victims Unsolved Homicide Mobile Home Park Shooting First-Degree Murder University of Idaho Murders Rural Oklahoma Property Linked Incidents College Students Missing Persons LaBianca Murders Triple Homicide Shooting and Stabbing Attack Nottingham Murders Atlanta Suburb Killings Suspect Arrested Friends Murder-Suicide Baby Homicide