Dave Kleiman and Hal Finney was in bad health condition for years before they left the world. Dave Kleiman was paralyzed from 1995 due to an accident and he needed help to move around and for the last three years of his life he was in the hospital and Hal Finney who was suffering from ALS for years and you can find his post in the forum when he was updating about his health conditions, so there is no mystery.

When it comes to the court case, till now Ira Kleiman has not produced anything about any agreement to get any Satoshi coins but what i am surprised is he already spent around $50 million for this legal case and there is no way he is going to win the case with the way things are going and whether CSW is the creator is another story altogether.