Maybe he does now.
I'm not sure he did when there were other suspects under consideration.
That bit of information didn’t just pop into existence “ex nihilo”, it came from surviving letters\diaries of the local gentry. I guess TJ could be the father. I wouldn’t care much except the way it was “surfaced” back in the Clinton years, to give Slick “cover” for his behavior. Given that, I’ll push back until there irrefutable evidence TJ did it.