And he kills Talia and the driver at the end of the trilogy.
The only direct kill you can point to of Bats in BvS is the batwing gun sequence, and even that was just explosions didn't show any bodies. Would be akin to Batman blowing up the League of Shadows headquarters in Begins as prisoners are still tied up inside. I've seen complaints about him dragging the car behind his batmobile, a Nolan comparison would be the garbage truck being dragged into the overpass no way anybody survives that in real life. In the warehouse scene he uses gun jamming mechanisms on the henchmen, lays cover fire at their feet, and shoots KGBeast's fuel tank, KGBeast pulls the trigger to ignite himself.