From the Journal of Director of Imperial Weaponry Archan:

I remember this picture... It's the one my wife sketched up for me when i was the director of weaponry for the republic. When the republic turned into the glorious empire ruled by the Emperor, everything was prosperous. The Jedi and their treacherous ways were snuffed out from the galaxy after the emperor gave the order. Unfortunately, Anakin Skywalker perished while defending our republic to the end.

in the weeks following though...Everything changed...

I was assigned a squad of clone troopers cloaked in black. Each having their own skill at one thign or another. "Death" troopers they called them. At first i was okay with the increased protection, but then i noticed something off..

Many species were being rounded up, some even vanishing entirely. I had to get out. I had a few contacts within the senate. Senator Bail Organa, of Alderaan, Senator Mon Mothma of Chandrila, and Senator Padme Amidalla of Naboo. Padme recently passed away under unknown circumstances, so i fear the worst for the others, and for myself. Me, my wife and my daughter gathered our things and made way to sanctuary on Alderaan after contacting Senator Organa.

That's when the death troopers came...

I never saw my wife, or my daughter... I barely made it out alive. Now, my position is being held by Assistant Director Orson Krennic. that worm, he'll pay for all of this, they all will!

~End Journal.

(This is sort of a small hint to my story that i plan to do to correlate with the Canonical Star Wars universe as sort of a side project)