This sucks. First and foremost for his daughter with Michelle Williams, Matilda.
They have not said what the cause of death was yet. I hope for his daughter’s sake it wasn’t suicide or drugs. I imagine that would mess a kid up pretty good. I never saw him as the suicidal/druggie type. He seemed to have a decent head on his shoulders despite the whirlwind romance/marriage/divorce he had with Williams.
He was also a really good actor. More details available in the main news outlets.