Whether or not Leo actually had influence, he might be able to help. Devin had to impress the importance of how completely unnerving it was to get mail directed specifically to him that he wasn't expecting.

He held up the letter. "Leo, if I'd gotten this delivered to me, to my real name, at my house where I'm from, it could be a death sentence. That's how serious this is to me," Devin said, quiet and calm. "I know it's not the same here, but it's extremely disconcerting. At the very least, you can try to figure out who sent it with me. There's no return address, and you know the network better than I do at the moment."

Devin paid attention, but mostly when he needed to. He needs to now, clearly.