Israel Keyes was a highly mobile serial killer who murdered Bill and Lorraine Currier in June 2011 and Samantha Koenig in February 2012. Keyes is also suspected of murdering several other people. He died by suicide in December 2012. Listen as retired FBI profilers Julia Cowley, Angela Sercer, Susan Kossler Drew, and Bob Drew continue to profile Keyes, including discussion of the note he left in his jail cell. Part 3 of 3. Music by John Hanske. If you'd like to hear more of John's music, you can listen on Spotify.