This story is based on the other stories of various Star Wars Fanfiction writers, so big props to them.
A long time ago in a galaxy far, far, away...
Star Wars: Rebellion Rising
Prologue: Heathrow's Message
To all Jedi receiving this message, this is Jedi Knight and General Cristopher Heathrow. I regret to inform you that the Galactic Republic has fallen and the Jedi Order is in disarray after order 66. I fear that Chancellor Palpatine has transformed the Republic from a democratic government into a dictatorship known as the Galactic Empire.
My duty at the Jedi Temple was no easy task, for I was once a member of the Jedi Strike Team known as Reaper Squad, a group of Jedi Knights specializing in assassination and espionage. When order 66 was executed, I watched as my unit was torn in half, one side following the dreaded order and the other side disobeying it. I watched as my squadmates, Both Jedi Knights, were killed on the spot by their clone commanders.
However, I can still feel some of you within the force, as I knew that the temple was evacuated and some clone units didn't carry out order 66. But for me, I fear that this message may be the last one I may transmit because Palpatine's inquisitors are closing in on me.
If you are reading this message right now, you are the galaxy's last hope against the evil Galactic Empire. May the force be with you, always.