As Elizabeth suspected, the Hunters seem to know that Trifonov was taken in (they presumably heard an unfamiliar voice saying 'Now lay down your weapon and surrender, Overwatch,' so it's not like it's a great leap of logic), because none of them answer any of Eric's calls or texts.
***
The various petrol stations, motels and such visited by Trifonov provide you a little further information, but not much. No-one that you speak to seems to have seen her, which kinda makes sense because when you finally find her in some of the CCTV footage - you have her calendar for her day job, including locations, so you can get a rough estimation of when each of her visits were made by figuring out when she went to the other locations her car's GPS recorded, and from there it's just a matter of going through the footage - it becomes apparent that these mysterious trips of hers were made at the dead of night.
Her actions are pretty much the same in each case; she arrives (alone), parks in the road or on the pavement, gets out of her car, and walks off out of sight of the camera. About an hour passes before she returns (still alone, and not obviously carrying a rifle or anything that would suggest she was using her car to transport the stolen weapons), gets back into her car and drives off. So clearly the petrol stations/motels were just a convenient meeting point and she was subsequently travelling to her final destination through other means.
Considering that it was pretty cold at the times of some of the older trips - especially in the early hours of the morning she was making these weird trips - either her final destination must have been pretty close or she was getting further transport there. After some laborious pouring through grainy CCTV, you find one instance in which notice a patch of light, cast by an off-screen pair of headlights, peels off shortly after Trifonov leaves the shot, which suggests the latter option. Tracking the footage backwards shows that they arrive about ten minutes before she does, but figuring out where they were before that is going to be something of a more intensive task.
Oh, and one piece of CCTV footage managed to catch McWilliam's little old car puttering down along the highway about five minutes before Trifonov gets there. So there's that. (She doesn't stop in the petrol station in question though, though she is going in the same direction that Trifonov later walks.)
It isn't until she's on about the fifth or sixth place that Elizabeth realises something - all of these locations are pretty close to rest stops for truckers.
***
While Elizabeth is still going from petrol station to motel, Coemans returns with the information regarding the smartgun. "Okay, so it's not Bluetooth, but it's basically Bluetooth. 'Like Bluetooth but better' was how the guy described it. Security-wise, W.E. haven't ironed out all the bugs in the security system it's meant to come with so the security is basically gonna be whatever a tech-minded individual puts on there. So, probably, non-existent."
"Far as tracking it goes, the guy I spoke to said apparently they never considered that and he's going to ask someone about it."
***
Aina flinches slightly - not from the touch, but rather from Erin's words. You get the impression that maybe she hadn't quite intended to let that slip. "I just...I hope people can get better. Gooder."
~I have to.~
You're pretty sure she didn't mean to do that. In fact she doesn't even seem to notice she's done it at first, but you can definitely feel a kind of mental...presence, for want of a better word. Kind of the telepathic equivalent of looking across a room and seeing someone.
A moment later it becomes obvious that she can 'see' you just as you can 'see' her, because she snatches her hand back and the mental link snaps closed. And she's actually trembling, apparently terrified by whatever consequence her telepathic abilities might have caused.
***
Dalca ignores Erin's apology (but at least she doesn't keep pressing the point.) "You don't know if we have people watching it?" she repeats, incredulous. "We have a known triple murderer who's gonna kill again unless he's stopped and you think we might not be ----ing watching him?"
"Say we clear out. What then? You get your perps. Hooray, good for you. And while you're dealing with them and their 'high-powered weaponry' how do you stop Simeonov just flying away?"