We know who you are. You’re the person who curls up on the couch on a Sunday afternoon to binge “Deadly Women.” And you listened to every episode of “Serial.” And you for sure know exactly what to do (and not to do) to get away with the perfect murder. You probably also have a lot of free time on your hands. So we’ve got the perfect way to fill that time. Because these are the best murder podcasts out there for when you need a little inspiration. Er, we mean entertainment.