Final answer:
Molecular phylogenetic techniques were pivotal in the conviction of the Golden State Killer, Joseph James DeAngelo, thanks to advanced forensic science and DNA analysis.
Step-by-step explanation:
Forensic evidence employing molecular phylogenetic techniques played a crucial role in the conviction of the Golden State Killer, also known as Joseph James DeAngelo. Advanced forensic science and DNA analysis techniques enabled law enforcement to link decades-old crimes to DeAngelo, ultimately leading to his capture and conviction. These scientific advancements, including DNA fingerprinting and genealogy, have revolutionized the way investigators solve crimes and achieve justice.