Houston police immediately launched an investigation, the police in the sewer and found a number of hands in the bag, and each hand on the palm of the hand are marked with the order of the number of.

休斯敦警局立即展开调查，警察在下水道里又发现了装在袋子里的若干只手，并且每只手的手掌上都标有按顺序排列的数字。

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"I think it's amazing what Sheryl McCollum is doing at Bauder College by providing these students with a hands-on opportunity to study a real-life criminal investigation, " Beth Holloway said in a statement to CNN.

CNN: Students try to crack famous cold cases