Well no, any future acts, or other acts in his past with different victims would still be prosecutable. Hopefully he'll slip and bugger the child of the PM of Thailand or Japan. Then it'll be the old hot metal slivers under the fingernails treatment for him. (Plus possibly another less mentionable place)
How about Singapore?
Anywhere but California. There he has de facto immunity to grope his "rubbas" to his heart's content.