The mother of one of the ten people killed at Santa Fe high school said her daughter recently rejected the romantic advances of the 17-year-old charged in the shootings. Investigators say this could be a possible motive for the violent tragedy. Eight students and two teachers were killed and at least 13 others were injured. Dimitrious Pagourtzis, 17, is charged with Capital Murder and is being held without bond in the Galveston County Jail.