Background
Ex Imperial scientist with a preference for field study and with an interest in the psychological makeup and weaknesses of jedi. Amon's job was mostly medical research, though later moved to research on Kyber crystals. Upon one of his forays he met a friend who (Unbeknownst to him at the time) turned out to be a one-time Jedi. He unfortunately found out at an awkward time, an Imperial inspection crew discovered their lightsaber, In an attempt to spare his friend from Imperial torture and potentially worse he killed them with a lethal injection, quickly, efficiently, and most importantly, painlessly. It took a while, but at some point, the guilt got to him, and he went rogue.
Motivation