I know we don't have all of the facts, but isn't it possible that the LEO was just curious. I'm just curious what would have happened if the guy just asnwered the question. Who's to say this officer didn't just want to talk guns. Oh, wait, that's right the guy was detained which means that's exactly what the officer wanted. Why always assume that LEOs are out to get us.
Let's assume we were to meet under friendly terms knowing each other is armed and knowing "assuming" we're both "good" people. You might want to just talk guns and ammo.
Who's to say the officer didn't want to do the same or maybe even give some pointers he's picked up over the years dealing with shootings, robberies, and car theft (because that's where his gun was).
All of the sudden this otherwise "normal" traffic stop has just become suspicious. Criminals, as far as I've always heard,
get pretty defensive when you question them about direct possesion of something that they may be in possesion of. They have even been known to actually tune out your questions and give programmed responses.
Q: "Do you have any drugs, guns, knives, grenades, bazookas, tanks or anything else in you car in need to worry about?"
A: "No sir, no sir, nothing."
A typical response, i would think, is:
"What? How the hell would I have a tank in my car? Bazooka? Really? Who has that kind of crap?
Just a thought. Maybe he drew suspicion by suddenly not talking to the officer he had been talking to without any problems.