Calgary police charge John Garang Luka Yag with attempted murder in unprovoked stabbing of mother and young son

Charges of attempted murder have been laid against a 20-year-old Calgary man after a mother and her six-year-old son were brutally stabbed Friday evening. That suspect is 20-year-old John Garang Luka Yag, charged Saturday with two counts of attempted murder. While police maintain the attack was random and unprovoked, they say Yag’s presence in the neighbourhood wasn’t.