The theory of reasoned action

I have always been interested to know what's going on behind everything. The basic question is, could any event or incident have a reason?
I am still not sure about the nature of the reason, it could be some sort of karma coming back to us, or our thoughts and imaginations getting a real solid shape being attracted to us, or maybe some sort of a planner with a special intention to make things happen the way they do.

The problem is, not all the incidents can be explained with one of these theories. I may be able to explain why I fell off and injured my hand the other evening in the rain (did I upset anybody?) or can find some explanation for achieving some of the goals I set for myself and imagined them or wrote about them (this one works magically, writing about what you want, and just let them be...they'll become attracted to you eventually), or can see the plan behind some of the things that has happend to me for the last 2-3 years and brought me here to Canada (I guess I can understand why that "ideal" fellowship was never offered to me back at home) ; However, I still cannot explain the recent deaths of two young, nice and innocent relatives of mine...one of them, a dentist, beautiful, a true lady, and the mother of two, who died of cancer at the age of 42; and the other one, a hard-working father of three, a 15-year old bright boy and 5-year old twins, who died in an accident. He was just 45 when he died.

I think in such cases, the only explanation could be that these are just some bugs in the system. Maybe this world like any other system has some bugs, which show as these not-so-fair incidents. Still, I tend to find some kind of pattern behind everything, even if it is not a coherent pattern of just one cause...