A missing Alabama girl who was found dead last month was beheaded after witnessing her grandmother’s fatal stabbing, an investigator testified during a preliminary hearing this week. According to AL.com, Madison County investigator Stacy Rutherford said Israel Palomino, 34, and Yoni Aguilar, 26, murdered Oralia Mendoza, 49, and her granddaughter, Maria Lopez, days after doing a drug …