Michelle Williams Breaks Silence About Heath Ledger

(andPOP) - Michelle Williams is finally speaking out after the untimely death of her ex-fiance, Heath Ledger.

The actress breaks silence in the new issue of Interview magazine:

"I think the interesting thing about Heath, which maybe people have only really fully discovered in his death, is how vulnerable he was. You can pick it up on it in his performances, but it's easy to overlook because he was so physical and beautiful and strong and masculine.

"But there was always that underlying sensitivity. That's who he was. He had a talent for everything that he put his mind to. He didn't know limits."

Ledger was found naked and surrounded by sleeping pills in his Manhattan apartment on Jan. 22. An autopsy showed he died of an accidental prescription drug overdose.

"For as long as I'd known him, he had bouts with insomnia," Williams says. "He had too much energy. His mind was turning, turning turning--always turning."

Ledger and Williams have a two-year-old daughter, Matilda Rose.