It isn't as though Alex wants to be right as far as this hunch goes- but, then again, if guessing this, and being correct, means that they can interrupt a would-be murder, she wants to verify. The girl might not always be the most verbal of people, but shes till cares greatly for the safety of the team- especially Ollie, who has become a sibling-like figure to her, who has always been an only child. She watches, silent still, while Jonathon calls Ollie. He is clearly panicked, and she doesn't like to see him in a such a state. Of course, it is to be expected that he'd react this way, even if only based on Alex's hunch; Ollie is like a son to Jonathon, after all. When the supervisor returns his attention to Victor and Alex, the latter is solemn. Were she religious, she'd pray to be wrong. Alex glances back over at Victor, who has returned to his work, looking as distracted as one might expect in this situation.
She hates that everything is going as one would expect right now. It hardly helps, considering that Ollie being the next target is what she would expect. It's especially ironic given that nothing else about this case is predictable. Not predictable enough for them to find the murderer, anyway. "Yes, sir," Alex responds to Jonathon before going back to her work. In this case, going over to confer with the other officers, and speak to the closest thing to a witness that they have at the moment. By all means, she should be distracted as well, but instead this serves as a sort of motivation, or perhaps a cause for adrenaline, making her senses focus as she tries to analyze and gather as much evidence as possible. She's not a forensics person, and thus relies on witnesses, signs of any struggle, and things visible to the human eye.
When Jon's phone rings, despite her previous focus Alex's senses are all immediately diverted to trying to catch the words. They are too soft, but Martel's words come loud and clear. And what they imply, very soon after confirmed, makes Alex's blood run ice cold, a shiver creeping up her spine for the third time today. Today had started so normally, considering. The weather had been pleasant, her lunch decent. Now that lunch turns over in her stomach. She glances over at Victor once more as Jon rushes out, just before she follows after. "Be careful. You have a gun? Don't hesitate to use it," she says, studying his face with eyes that never seem to miss a thing before rushing off behind Jon to get into her car and get to the scene.
Once again, the drive is far too long, and Alex is acutely aware the entire time of the fact that she cannot feel her hands properly. They are numb on the steering wheel as she turns into the department to see an ambulance just outside, and EMTs running in with a stretcher. It occurs to her now that she was never told where Ollie was shot. She rushes in, and seeing the shoulder wound, is grateful- though the situation remains bleak. The night team has been turned on, now.