Just a thought, I've been reading this thread and haven't bothered posting here until now, but I was thinking that maybe Lyte, when questioning, gave vague questions to the witnesses and got vague answers in return for him to interpret the way he wanted to interpret. That's one possibility that has me thinking. We could use the raw interview footage to see if that's a possibility...
Apparently, you haven't seen the footage.
There isn't anything vague about it.