If there’s a God, why does He let bad things happen?

We all have had experiences or have known good people who have had bad things happen to the. Often the question arises, If there is a God, why woul He let this happen? Sometimes it's not even spoken, but people will get angry, frustrated and resentful. Those feeling can put a shadow over your life, and you might not even realize it. I go into the reasons tht God is not responsible for all of what happens on Earth. We have that option of free will. If you have some painful times this might help.