-
Now Playing: Murder Mystery: Who Killed Farm Couple?
-
Now Playing: Golden Ring Turns Murder Case Upside Down
-
Now Playing: A Murder, Two Suspects, Two Confessions
-
Now Playing: Why Did Nephew Make a False Confession?
-
Now Playing: CSI, Stocks' Killers Serving Jail Time
-
Now Playing: Female trucker gives self-defense tips
-
Now Playing: How this female trucker deals with men on the road
-
Now Playing: Comey does not know why Trump is reluctant to call out Vladimir Putin
-
Now Playing: Comey weighs in on if he thinks Trump will be impeached
-
Now Playing: Comey on Trump tweeting about possible 'tapes'
-
Now Playing: Would Comey be a witness for Robert Mueller?
-
Now Playing: James Comey Part 1: Telling Trump about the 'dossier'
-
Now Playing: James Comey Part 2: The Hillary Clinton email investigation
-
Now Playing: James Comey Part 3: Trump asks for 'honest loyalty'
-
Now Playing: James Comey Part 4: Discussing Michael Flynn
-
Now Playing: James Comey Part 5: Are there Trump tapes?
-
Now Playing: James Comey Part 6: Comey on a Trump impeachment
-
Now Playing: Comey: 'It's possible' the Russians have something on President Trump
-
Now Playing: The moment Comey thinks Trump turned on him
-
Now Playing: Comey thinks Donald Trump is unfit to be president