Murders of Nathan O'Brien, Kathryn Liknes and Alvin Liknes
The murders of Nathan O'Brien, Kathryn Liknes and Alvin Liknes occurred on June 29, 2014. Five-year-old Nathan O'Brien and his grandparents, Kathryn and Alvin Liknes, disappeared from the grandparents' Calgary, Alberta home after what police called a "violent incident." An amber alert was issued. This alert was lifted on July 14, 2014 after the arrest of a person in relation to the disappearance. Later on July 14, 2014, police stated that they believed O'Brien and the Likneses were murdered, although no bodies were recovered.