@Blickers,
I think it was Mercutio Southall Jr. at around the date November 22, 2015.
The Washington Post reported this:
Mercutio Southall Jr. — a well-known local activist who has been repeatedly arrested while fighting what he says is unfair treatment of blacks — interrupted Trump’s rally and could be heard shouting, “Black lives matter!” A fight broke out, prompting Trump to briefly halt his remarks and demand the removal of Southall.
Look, I've only been here about two weeks, Blickers. You want to win a point, a debate, but really it is pointless for you to try it. I am simply telling it how I see it, and if you disagree with me, that is alright. I expect it.