Lewis Ludow of Kent UK, an ex- Royal Postal worker planned to "Go Postal" and kill up to 100 people while undergoing a de-radicalization program. The ISIS supporter and sympathizer was admitted to the program after numerous other incidents where he showed sympathy and attempted to aid terrorist organizations. In fact, on his way to meet with his prevention officer ( in the US prevention officers are known as prison guards) he found he was running ahead of time and decided to scout out a few places to hit including Oxford Street, a very crowded area that's daily filled with those damned happy infidels that most get under the skin of ISIS. Mr. Ludlow, known to himself as The Wolf ( apparently one without a den as he looks homeless) expressed his hate for the UK and it's people. He'll soon appear before a judge and be sent somewhere where they have REAL preventative officers.
BTW: The "Going Postal" is an American expression. Look it up on the Internet if you don't get it.