For the AU I made of Inquisitor Fives and Siren experiment Echo:
When Fives gets shot on Coruscant, he dies. As any good little dead traitor he gets his own personal autopsy barely a few hours after his heart stops.
In the middle of the autopsy however, he wakes up. His heart doesn’t beat but he is vaguely conscious if disoriented and lost in memory, barely capable of taking in the world around him.
Scared and angry, he lashes out at the scientists surrounding him, killing some in the process, before he is sedated. Dead clones returning to consciousness is unheard of, so the remaining scientists contact the Chancellor to be like wtf do we do with him he’s not dead and won’t die further bc technically his body is already decomposing and not functional.
Sensing a potential oportunity, Palpatine has Fives transferred to his own labs and experiments on him, cue gore horror and torture. During a particularly bad session, Fives gains enough bearing to lash out despite being restrained, revealing to both of them that he is force-sensitive. Not wanting to pass up the opportunity for an undying super soldier capable of using the force, Fives gets hardcore brainwashed with Sith magic and is forced to become an Inquisitor pre-empire. He gets sent on various horrifying missions involving a lot of blood and that’s the last we hear of him for a bit