Running out of tricks. It's so different without the urgency, without knowing that someone's life is at stake and the tactics they deploy then aren't working in the same way here. Without a background check or a proper crime or even a team it's difficult to find the right path. He's done what he can, poked and prodded in whichever way he felt comfortable doing so on his own and now all that's left is to... well. Go back to the beginning.
He makes a face, brows furrowing and mouth curving as he subconsciously bites into his bottom lip, like he's trying to grasp the situation. Figure out where to go from here.