Living in fear after a tragic loss

There are people who go through life going through the motions and truly believing that they have control over their lives and the lives of their loved ones. We used to be those people, until one day we got a phone call letting us know our 25-year old son Ricky was involved in a car accident and he had not survived. Needless to say, that day changed our lives and our outlook on life forever. We will never look at life the same way again. We know that terrible things can happen to good people for no good reason. Since then, we've met other parents like us and we've learned that the world is an unsafe place.  So we've been very protective over our other son who just turned 21.  He is a very responsible young man who is very aware of the precautions he needs to take every time he leaves the house, because he is constantly reminded of what happened to his older and only brother 3 years ago. He wears his seat belt, he does not drink and drive, he goes to school and works and comes home, and he is very considerate especially of his paranoid parents.  Then one night while out with friends he gets attacked and beaten when he least expects it. He is okay, and we are so very grateful. But, we wonder, what will happen next?  Is this how we are to live the rest of our lives in constant fear?  I would have to say, probably yes. Because while other people go along with their every day lives, going to work, taking their kids to soccer, ballet, sports and school events, and worring about petty, everyday things; we worry about much bigger things, like will our one surviving son make it home safe tonight? Because we know that bad things happen to anyone at any time, and we can take all the precautions you can think of, but there are still things out there that are out of our control.