Trajectory is pretty simple! Take a pencil, put it to the right of your right eyebrow....point pencil to the direction below/at your left cheek.
Simple.......done! that is the trajectory. Now if you want to be like many of us.....sit in your shower or on the floor. Get a yardstick and line it up with that pencil that has the trajectory. There are many variations, but simplest is he was in a position exactly like the photo of his lower body in the shower....no head in the photo...angle is consistant if gun was about 3 feet away from 3 1/2" or so high.
We are no criminalists, but we do recreations on WS!!!!!! lol (Oh, and those 2 that did the nekkid drags with their hubbies in the bathroom.......... :floorlaugh::floorlaugh::floorlaugh