Rick Rypien NHL Player Vancouver Canucks Found Dead. How did he Die? Suicide?

NHL Player Rick Rypien was found dead in his home. How did Rick Rypien die?
He was known for being a tough guy type of player. In the old days, maybe he would be considered a goon. He has had several concussions in his playing career and speculation may be that this contributed to his death somehow. Is it similar to the Dave Duerson or Derek Boogaard death? Was it suicide? Brain tissue may be analyzed to see if there was any trauma or damage.

Were drugs involved? What caused Rick Rypien's death will be determined in the next few days. How old was he?