If you want to watch Elementary Season 1 Episode 12 M free episodes withal and high quality commercial the right website. Watch Elementary Season 1 Episode 12 M and different scenes in amazing streaming free of charge. Stream Elementary Season 1 Episode 12 M on the web. Holmes is reunited with “M.” (Vinnie Jones) a British serial killer who appears to have followed Holmes to New York; Watson eventually learns that “M” is the one who murdered Sherlock’s lover Irene Adler, causing him to spiral into his previous addiction. However, after Sherlock captures “M” and privately interrogates him, he learns that “M” (whose name is Sebastian Moran) is not a serial killer but an assassin, and that he was jailed when Irene was murdered.