As of posting, he still has 2 hours of fuel left and isn’t over Tupelo Missouri any longer.
It isn’t hard to steal a plane, Starting it and taking off (and controlling it once in the air) can be challenging if you don’t know what you are doing, but none of them are that difficult.
I have a feeling that he won’t land it well, and that the plane will be paid off by insurance. Let us hope he doesn’t hurt anyone else.
Update: he has apparently landed.
In a field.