One of two girls at the center of a Louisiana Amber Alert has been dead in Mississippi, according to local officials. Her sibling was found alive and the suspect, who is also believed to have killed their mother, was taken into custody. The investigation began on early Thursday morning when detectives found the body of 35-year-old Callie Brunett at her home on North Cooper Road in Loranger, a town in Tangipahoa Parish, after she had not been seen for more than 24 hours. An amber alert was issued after investigators determined that Callie’s two daughters, 6-year-old Jalie and 4-year-old Erin, w…