Origins Month comes to a finish with "Charm & Harm", an episode with suspicious similarities to the Season 14 episode "Chameleon". Would Criminal Minds be so callow as to rip themselves off? This isn't the venue to speculate, but yes. The serial killer drowns women and then switches his identity, from real estate guy to pilot to nerd with a limp. He's unstoppable! Except the authorities already know who he is. The BAU is there to crack the question "describe in single words, only the good things that come into your mind about your mother". Exciting, isn't it?