"Bad" things happen to everyone in this world. This world is imperfect and even down right evil at times. Take a look at the first 10 minutes of any news program.
Like someone already said, bad things happen to everyone, and I believe a follow up question is, "What do you do when it happens?"
I have seen that those who have a strong faith in God, seem to handle their "bad" things a little better. They struggle, they question, they hurt, they resent, etc. But over time, they also are able to become a little more at peace sooner, because they believe in God's better plan for them in the end.
Unfortunately, pain and suffering are a big part of this world, but understanding the story of man's fall and more importantly, knowing God's plan for salvation, is the great equalizer that provides rest and assurance to believers.
Check it out! :)