Christopher Tapp

Yeah, he absolutely could be.

Could he not be?

Yeah, that's possible too.

So do you go down there and just knock on his door or do you go down and try to collect a sample without him knowing in a legal manner that doesn't compromise the investigation in case that's not your person?

And finally just came to the conclusion, look, we're going to try to do this clandestinely and try to get this sample without him knowing and

Because I am not going to be the person that compromises this investigation once we've gotten to this point.

So we're just not going to leave anything to chance.

The usual methods, grabbing a cigarette butt or a glass from a restaurant, didn't work.

So police got creative when they noticed the man was driving a car with expired license plates.

The officer pulled him over.

And so why they had the subject stop, they asked him, hey, would you, this officer's in training, would you mind giving us a breath sample just so he can get the practice of running this machine?

You don't even have to get out of your car.

And he's like, of course, yeah, no problem.

And we collected two breath samples in those breath tubes on the ALCA sensor device.

And that gave us the DNA sample.

But when the results came back from the lab,

No match.

Whoa.

That one, huge disappointment.

That one hit us hard.