There’s a hot summer beach read getting so much buzz, we’re surprised Kris Jenner didn’t come up with it herself: Killing Kardashian is a juicy whodunit about...well, the graphic murders of every member of America’s reality TV royal family. We’ll spare you the gory (like, really gory) details, but the e-book, which author John Jetsyn Tache describes as Hollywood satire, features a killer in a Taylor Swift mask. (Of course!) “I don’t hate them,” John insists to In Touch of his subjects. “I just think they’re uninteresting.” Reaction to the book — all 800 pages — has been so positive, he says there’s even been interest in turning it into a movie. “In a perfect world, something will be announced this summer,” John says. We’re guessing that Kris and her…