Galveston by Nic Pizzolatto Scribner, $15.00, 258 pages, ISBN 978-1-4391-6666-6 Tough guys . . . that’s the subject of this weeks MBR number twenty-two.  Now.  I realize when I wrote the preceding sentence, that every one of you readers out there remember a tough guy, or gal, know a tough person or two . . . heck, maybe you are a tough individual with the chops to prove it.