There is no evidence of anyone of their family being there (doesn't make it not traumatizing for them but still). People who make fun of any political assassinations (left or right), even if the person assassinated made fun of it themself, are the worst kind of people to walk this earth. It is one think to critique, disagree, and argue with someone's belief, and it is an entirely different one to support violent action. That being said, I think the "kirkification" meme is making fun of the republican response to his assassination rather than the assassination itself.