He said it, so it must be true
Besides, he was so helpful to the police in finding out what happened. Completely cooperative. He stayed around the TSBD and talked to his co-workers about the event, he stayed to see if he could help find out who killed the president he "liked." Yes, he was really concerned about what happened to JFK. He talked and talked and talked about it.
Or maybe not.
But see? Lots of people behaved like he did. Er, except he was the only person in the TSBD during the shooting who left afterwards. But that's what "thuh government" said and I'm drinking their Kool-aid lies.
Or something.