As the end approaches, ‘Gotham’ isn’t going to get any less gruesome

As “Gotham” barrels toward its series finale, a lot of things are changing. And, we’re promised, we’ll actually see Batman in the last episode of this “Batman” prequel.One thing that hasn’t changed, however, is the level of violence in the Fox series, in which James Gordon (Ben McKenzie) is a cop; Bruce Wayne (David Mazouz) is a teenager; and the cast includes young versions of the Penguin, the Riddler, Catwoman and many more villains.Shootings, stabbing