Jay DeMarcus’s memoir comes out this month…Thomas Rhett’s new album comes out next month… Rascal Flatts' Jay DeMarcus's memoir, Shotgun Angels: My Story of Broken Roads and Unshakeable Hope, hits shelves this month.Jay says, “In Shotgun Angels, readers will hear never-before-told stories and get a glimpse into what it was like for me coming from Columbus, Ohio, my journey to Nashville. My ultimate goal is that the book will encourage people that no matter where they are in their lives, they…