But Jim had many suspects in mind - one however should be dead. He needed to get back to London.
Days later, he was sitting there at the Bloomsbury Hotel when his target appeared in sight. Jim was watching her - mystified by her nature - Mycroft's PA was not just an admin clerk.
Annalise Newham (aka Anthea) was a lead microbiologist at Baskerville before being recruited by Mycroft Holmes. Her skills were exemplary - Jim could do with a microbiologist especially with Anthea's skills.
Jim would strike when he was ready - he needed to ensure no-one was to intervene, he looked slightly different and added an American twang.
Anthea was approaching Moriarty's table - he then stood up and knocked the glasses that were in her hands.
"Oh sorry ma'am." spoke Jim.