Webthis case remained unsolved for 27 agonising years until advances in dna analysis led to the apprehension of the culprit, danny heinrich. The breakthrough came when. Webmccollum sent the information to the lead detective and, after more than two decades of no answers, the case picked up steam and shot through the next few months. Webuniversity of adelaide professor derek abbott joined us earlier to tackle all your curly questions about the case, alongside renowned forensic genealogist colleen. Webinspired by the breakthrough arrest in the golden state killer case, detective scharf wanted to utilize the same technology to try and catch tanya van. Webit's one of the oldest criminal cases cracked with the new dna technology. The murders of teen sweethearts lloyd duane bogle and patricia kalitzke had gone. Webit was the eureka moment for which detectives investigating the claremont serial killings had waited over a decade. In january 2009, a crucial link was made. Webpennsylvania state police investigators said the biggest breakthrough in the case happened this year after they obtained a new sample of grim’s dna to. Webscientific advances meant that familial dna links could be identified, a breakthrough that proved crucial in solving melanie's murder.
