Drug traffickers 'BEHEAD special needs girl, 13, in Alabama cemetery because she witnessed them stab her grandma to death over her links to El Chapo's Sinaloa Cartel'

• Mariah Lopez, 13, was killed alongside her grandmother in Alabama on June 4
• New details emerged in court on Thursday in hearings for the two men charged
• Yoni Aguilar, 26, and Israel Palomino, 34, are both charged with capital murder
• Prosecutors say grandma Oralia Mendoza, 49, was tied to the Sinaloa Cartel
• Slaying followed a dispute over a meth score between granny and alleged killers