Christopher, thanks. The project has changed a bit. I'm going to cut off that brick sticking out--somehow. I want to avoid a diamond bladed skilsaw due to the nasty dust. Maybe go old school with a brick set chisel?
The advice on the backer board is good as I need to cover the rest of the brick with it due to the brick being painted (can't remove it). I am going to use tapcons with versabond behind then tile with versabond over the backer board.