A mother who stabbed her eight-week-old baby son twice through his heart has been told she must serve at least 20 years in prison for the murder.The 31-year-old was also given a concurrent sentence at Belfast Crown Court for the attempted murder of her two-year-old daughter.The defendant, who cannot be named due to reporting restrictions, wept in the dock as the sentence was delivered by Judge Donna McColgan KC.

A mother who stabbed her eight-week-old baby son twice through his heart has been told she must serve at least 20 years in prison for the murder.The 31-year-old was also given a concurrent sentence at Belfast Crown Court for the attempted murder of her two-year-old daughter.The defendant, who cannot be named due to reporting restrictions, wept in the dock as the sentence was delivered by Judge Donna McColgan KC.