Did you refuse to escort the Wolfram back to town? If you agreed I'm not sure if there is a time limit on how soon you need to follow him to catch up.
While it would certainly help if the enemy animation was paused on mouse-over, or something, generally you should be able to aim for the feet, since most of the movement is in the upper body. There is also an overhead camera view.
In the cemetery there is a large pile of dirt if you use another entrance and come up that way, with a shovel nearby.
There are some UI improvements in the works.
