What are you implying? I never thought it was Lee Harvey Oswold.
Although I’m confused as to why the last line is incomplete, I like the piece as a whole.

I generally like this. I didn’t think it was going to be about JFK, which was a nice surprise. I do agree with PJ, the last line doesn’t work for me. I would have been fine with the last line being I know who killed JFK. Still, interesting angle.