I'm positive that it is the same snake, I have never seen any wild corn snakes around here, actually I've never seen any type of snake anywhere near my house (besides the ones I keep). No one that lives near me keeps any snakes. Plus when I went to catch him, he didn't act like I would expect a wild snake to act. He seemed fairly calm, flailed very little, no bitting. Same coloring and pattern, only a bit darker but again he's in blue.