Article continues below advertisementAmid its ongoing effort to find Nancy Guthrie, the FBI has reportedly tapped an investigator who was involved in one of the most prominent criminal cases in recent history.On Thursday, February 12, Fox News reporter Michael Ruiz wrote on X, "BREAKING: We have a good clue about what just happened at Nancy Guthrie's home. FBI experts on video, imagery and physical science [were] seen carrying video forensics equipment into the tent. A prominent member of this team has worked other high-profile cases including the Bryan Kohberger investigation.