Good looking Ghog you got there! I commend you for the patience it took to get him.
I've got one at my dad's thats evaded me for years, killed all the others he had living under his deck and burrowed into the retaining wall area. Used a 22lr subsonics for those.
This last one has got to the point he mostly comes out overnight and eats. I need to get over there around 2 am and get him. Can't believe he learned, you go out in the daytime, you die.
He will lay on the retaining wall sometimes, but spooks so easily, and the entrance to his burrow is 2 foot from him. His face is all grey and he's huge, wanna get him before he dies under the deck!