A bit of a quick one here, so check out "Leave Amy Alone" for context.
It is starting to look as though freelance U.K. "terror expert" Glen Jarvey placed a story re radical Muslims threatening prominent U.K. Jews in the U.K. Sun by writing up the inflammatory content that he's warning everyone about himself. A nifty bit of on-line research here seems to tell the tale.
This reminds me of something, but I can't think of what...
Note: the fact Mr. Jarvey apparently has links to this guy does not help his credibility.