With the Jedi Order overextended, spread thin across the galaxy, each Jedi is alone, surrounded only by whatever clone troops he, she, or it commands. War itself pours darkness into the Force, deepening the cloud that limits Jedi perception. And the clones have no malice, no hatred, not the slightest ill intent that might give warning. They are only following orders. In this case, Order Sixty-Six. Hold-out blasters appear in clone hands. ARC-170s drop back onto the tails of Jedi star fighters. AT-STs swivel their guns. Turrets on hovertanks swung silently. Clones open fire, and Jedi die. All across the galaxy. All at once. Jedi die.
After Solo tells Skywalker, “You look strong enough to pull ears off a gundark,” and Luke responds with, “Thank you,” Harrison Ford kissed Hamill rather than say, “That’s two you owe me junior” - the crew cracked up.