What this means is that my path in life has already been determined by events that occurred before my birth. That means we only have the illusion of "free will" or the ability to control ourselves, when in reality everything we do is the result of a determined set of conditions. If everything we do has already been determined by things outside our control, then that relieves us of all responsibility. Just because we feel like we're responsible for something doesn't mean we are. Feeling responsible can be no more than an illusion, besides, many people can feel responsible for somebody's death even if there is no rational reason for it. If it is true that our mind can be reduced to the random bouncing of billiard balls, it appears that we have no rational reason to feel responsible for anything.
This brings up another point. Let's say the billiard balls interact randomly. That means that their final state cannot be determined by their original state. Some contend that this opens the door to free will. However, it just means that our mind is reduced to millions of neuronal dice. Instead of free will, we end up with random will. Someone who's decision making is at the whim of neuronal dice is hardly in control of their faculties.
So it looks as though free will is a figment of our imagination. But then I must ask myself, with this insight into human behavior, should we feel responsible for anything since it was outside our control to begin with?