Obi-Wan Kenobi: He is in grave danger.

Padmé Amidala: From the Sith?

Obi-Wan Kenobi: From himself. Padmé, Anakin has turned to the dark side.

Padmé Amidala: You're wrong. How could you even say that?

Obi-Wan Kenobi: I have seen a security hologram... of him killing younglings.