I had the same situation happen to me 8 years ago. Here's the plot in a nutshell: Evil older brother has our ill mother (with a drinking problem) make a trust, negating previous will that divided everything equally. You guessed it -- the new trust gave him almost everything. Can't be changed since mother died before existance of trust was discovered.
When I asked for some special items that my mother had promised me since I was a little girl, I was told they couldn't find it or they just ignored my request. Needless to say, we have been estranged since then (my choice entirely -- he doesn't really know why I am so upset!).
Frankly, I don't blame the Roche family one bit. If my brother didn't have guns, I would have done the same thing.