Sorry I haven't had he chance to reply earlier.
I respect your opinion, and if is the case that this video has been edited as you say, then I regret having posted it.
I forwarded a link from a source which I usually trust without querying it, and wish to apologize to NSC posters for doing so...
We don't know the full circumstances about the motivation and background of the individual that has murdered Jo Cox (despite assertions to the contrary from either faction).
We do know that the recent background includes a major player in the referendum campaign saying this:
Blimey, with that kind of talk going on, literal minded folk could well be up for a bit of stabbing and shooting. How about we all try to be part of the solution, not the problem?
Apparently some internet sleuths have tracked down this document from 2010 which suggests that the assailant Thomas Mair has a history of mental health problems.