Couple Constance Marten and Mark Gordon guilty of manslaughter by gross negligence for baby's death. Baby Victoria found decomposed in shopping bag after dying in cold tent. Death likely from hypothermia or smothering during co-sleeping in thin tent amid wind and damp. Parents fled authorities to keep fifth child after four prior kids taken into care. Marten from wealthy privileged family. Gordon convicted rapist at age 14, served 20 years in US prison. Couple showed no remorse, disrupted two trials, sacked 14 barristers. Refused to stand for verdict, planned appeal claiming unfair trial. Exposed baby to freezing conditions instead of seeking help. Police manhunt lasted 53 days after burnt car discovery. Death completely avoidable with multiple chances to get assistance. Prior convictions include concealing birth, perverting justice, child cruelty. Judge accused them of sabotaging retrial.