Killed not by clones... this Padawan, by a lightsaber he was.
12 seconds sound clip from the Star Wars: Episode III - Revenge of the Sith movie soundboard.
You can hear this line at 01:34:41 in the Blu-ray version of the movie.
Quote context
[...]
- And the Jedi rebellion has been foiled.
- The chancellor's been elaborating on a plot by the Jedi to overthrow the senate.
- The remaining Jedi will be hunted down and defeated!
- Not even the younglings survived.
- Killed not by clones... this Padawan, by a lightsaber he was.
- Who? Who could have done this?
- The attempt on my life has left me scarred and deformed.
- But I assure you, my resolve has never been stronger!
[...]