Mycroft fan posting a cry for help for a sort of confirmation spoiler. In the BBC trailer, where Sherlock says the one person he thought I cared the least about, is the one person who mattered the most, something along those lines-is the identity of that person revealed in the episode? Cause it doesn't sound like it was describing John-I'm hoping for Mycroft of course, but it was probably John or Molly-confirm, pretty please?