[quote="exe2K":1ncptht2]so guys, did u find the way to make a ragdoll after the character's death?[/quote:1ncptht2]
The only way to do that at the moment is to have a clone of each appendage, and these clones would have the physics behavior. When your character dies, you create the clones at the correct positions and angles compared to the originals, create joints between the appropriate physics clones, and then destroy the bone system and it's appendages.
It's a bit of a time consuming process, but it's not too terribly difficult.