[Magdalen] Mass nightclub shooting.

[M J _Mike_ Logsdon]

>>>Forgive me, but as both a history major and an editor, "worst mass shooting in American history" still doesn't parse. It's the worst mass shooting in the U.S. in this century. I think if you looked into U.S. Black or Native history, you'd find worse.
I'm not just nitpicking.  It's important to fact-check statement about history.<<<

I agree, Molly.  Like I said, Context.