Pictures.

I only got a few and I don't even think you can make out the words, but here they are.
Got them yesterday. Today it rained. So I guess if this guy's determined, he'll have to be out a lot, because it's raining like crazy.

The first one says "I SEE YOU. Where you are. What you do. I see it."
The second one says "Watc" and part of an H, which I assume was supposed to be "watching", but he didn't have time to finish, obviously. Pretty creepy, once again, if you ask me.

I think I'll call the perp Sleepy, on account of his eyes. I wonder who he's leaving these messages for. Maybe I should be looking for two people. Or many.

Sleepy, I'm gonna find you.

Sincerely,
Alexander