Our brother-in-law deceived our sister about his age to marry her, fully aware that he was much younger. As the truth unfolded, he began to mistreat her. He stayed out late, neglected his family, and refused to provide for her. The abuse continued until she finally left the marriage with their kids, hoping he would ask her to return, but he never did. Heartbroken, she suffered in silence until she died. Now, after her burial, he has taken their children to his grandmother, a decision we strongly reject. He must return them – Family demands.