Don’t know where you’re at, but where I am, I have no legal obligation to help anyone trespassing on my property. That said, I would call the cops, so they can help him. While they may not be great at this, it’s their job (not mine), and I’m not risking my life. Maybe he’s honest in his needs. Maybe he’s not, and his intentions are nefarious. Do you know? I don’t, and I’m not willing to risk my life finding out.