Try making a destructable, and give it the model of the hero, then check the box Display dead version (or similiar to that). Also make sure that the destructable is unselectable. Then just place the destructable (or create it) where you want it. If you need it for a spell like raise corpse then this idea worn't work. Also if this is for a cinimatic, you could just create then hero, then play it's death animation. | 
