A Marshall couple is under investigation after the death of their three month old boy is ruled a homicide. All of the focus is on the couple who just recently moved to the Marshall area from Mississippi. Police don't have a history on them, but they are now questioning the couple about the death of their three month old boy. Police were called to Marshall Regional hospital on Tuesday night. The parents had taken the baby to the emergency room, but the three month old boy was already dead. The parents have been in the area for only a few months. As is normal procedure in the death of an infant, an autopsy was performed. It revealed that the child had traumatic injuries to the head, back and ribs... injuries consistent with beating. Police immediately ruled the death a homicide. The couples other children have been placed in foster care by child protective services.