What started as a celebration ended in heartbreaking tragedy as Kerby Revelus, 23, murdered two of his sisters Samantha, 17, and Bianca, 5, during the youngest one’s birthday party, according to the Associated Press. Revelus was shot and killed by police after a third sister, Sarafina, 9, called police. She was badly injured with knife wounds but is expected to live. During the attacks, the children’s grandmother washed clothes downstairs and the parents were away. The exact motive still remains a mystery, after Kerby had argued earlier in the day with neighbors and family. -CJ