The disappearance 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 state that they believe O'Brien and the Likneses were murdered, but they did not recover their bodies. Douglas Garland was charged with two counts of first degree murder in the deaths of the Likneses and a second-degree murder charge for allegedly killing O'Brien.