FULL TITLE: Birth parents of girl, 14, raped, strangled and dismembered 'by her polyamorous adoptive mother and woman's boyfriend are inconsolable as they arrive at memorial for victim' The biological mother of 14-year-old Grace Packer had to be propped up by her family as she sobbed uncontrollably Monday on her way to a memorial service for her murdered daughter. Police in Pennsylvania believe Packer's adoptive mother, Sarah Packer, and the woman's boyfriend, Jacob Sullivan, tortured, raped, to death and then dismembered the teenager as part of a sick sexual fantasy that was carried out last July. Grace's remains were discovered...