JMS announced via his facebook page Michael O'Hare, better known for his role as Commander Sinclair on Babylon 5 suffered a heart attack on the September 23rd and had remained in a coma until the 28th, when he died. JMS later reprinted a letter on the 30th from Mark, Michael's brother addressing Michael's fans.
"Mikes Brother 'Mark": Sorry all I must admit I am not a Facebook user. This was just shown to me. I want all of Mikes friends and fans a like to know that our family very much appreciates and thank you for all the kind thoughts and words. He was not only my brother but a great friend who I will miss terribly. I can tell you he loved life his craft and being on B5 and all those associated with the show from creator, cast, crew and fans. This all happened so fast it is still a blur to us. This past Sunday he had heart attack. The hospital did every thing they could to save him. Unfortunately it took some 50 minutes to revive him. Though we knew this to be a very long time and feared the worse. We still hoped and prayed that just maybe he could some how pull through. But in the end it just was not to be. It is just so sad the way it turned out. He just never came out of a coma and when he was declared in vegetative state with no more than once percent of brain functions. We the family were just heart broken. We knew mike would never want to go on with this so we entered him in Hospice for a peaceful and painless passing. Mike will now be reunited with his younger brother and sister whom we lost a while back. So we the family is comforted to know he will be with them again. Again thank you. Mike I am sure is smiling down knowing that he was able to touch so many with his craft. God Bless."
R.I.P. Mr Sinclair