A Philosophy About Death

At the light of recent events, many ideas and thoughts cross ones mind- especially mine. When these kinds of things happen- these bad things, I get depressed, upset, and worst of all: I philosophize a bit too much.
My parents always tell me to be careful when I go out. Whether it be at school, out to a party, lunch with my boyfriend, anything, they always give me their recommendations and blessings. There are many ways to protect a persons security. don't drive under the influence of drugs and/or alcohol, don't take drugs and alcohol, don't walk alone at night, stay away from strangers, don't take bad risks, etc... Many things can be done to avoid a sudden, accidental death. Right?
Yet, there are some things that cannot be done. As Christian as you may be, or as careful as you are: sometimes you just die. Imagine sitting in your French class, your professor is going on about French literature while your doodling on your notebook. All of a sudden, you hear loud shuffling noises outside your classroom, the door opens and someone with a gun shoots your professor in the head...then he shoots you.
Sometimes, and most of the times. we can prevent our death by taking various precautions. But there are times when there's nothing you can do. May God have all of the victims of the Virginia Tech massacre in his kingdom.