In Weirich v. Weirich. 833 S.W.2d 942, 35 Tex. Sup. Ct. J. 952 (Tex. 1992), the Texas Supreme Court found that there was legally sufficient evidence that the abducted children's grandmother aided and assisted the abductor father in concealing the whereabouts of the children because the grandmother swore in open court that if she discovered the whereabouts of the children, she would notify the authorities, and by doing so assumed an affirmative duty to disclose the children's whereabouts. Id. at 945.