There is no way police found Idaho murder suspect Bryan Kohberger's DNA through popular websites like Ancestry.com or "23 and Me" - so says the DNA Detective, CeCe Moore. Michael gets expertise from her on how DNA tracing works in police investigations, and what most likely led police to arrest Kohberger in Pennsylvania, arrested as a suspect in the murders of four college students in Moscow, Idaho. Original air date 4 January 2023.