Another attack in London by a loser terrorist.These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!

— Donald J. Trump (@realDonaldTrump) September 15, 2017

Scotland Yard had just finished briefing the press, specifically refusing to answer questions about suspects, when the President posted this tweet. A Twitter intelligence leak or speculation?

UPDATE: For an idea of what Number 10 will be thinking right now:

True or not – and I’m sure he doesn’t know – this is so unhelpful from leader of our ally and intelligence partner. https://t.co/ZndrTXFrAX

— Nick Timothy (@NickJTimothy) September 15, 2017