I believe in a few basic truths that help me through such otherwise tragic and unexplainable events:
1. The world was perfect (no sickness, no death, no weeds, no birth pain, etc.) when God created it (Genesis).
2. The world has been decaying (sickness, death, crime, tragedy, calamity, etc.) because of and since the fall (Romans 5).
3. God does not cause tragedy, but He is the only One who can bring good out of it (Romans 8:28).
There is no 'right or wrong' in the animal or plant world below the animal level of humankind. We don't even know if there were homosapiens before Adam and Eve walked int he Garden God planted especially for them.
Consider the following in light of what the Bible teaches on man having been given 'free agency'/free choice:
The Will of God is absolute --when God thinks something it will come to pass;
if satan were able to hook God into reacting to evil --as in 'why did God allow this to happen, He should not allow this sort of evil'-- then in being tied to reacting, God would be removing the realm of free agency;
What happens in the course of time fits into the plan God is bringing to pass or else it will not be allowed;
until Adam fell, right and wrong were not real on this planet, thus there was ntohing happening except it was being allowed by God's plan and there was no way satan could hook God into preventing wrong because there was no worng just what is.
With the advent of Adam and Eve, the realm for our free agency had as axiomatic that right and wrong could be chosen, thus satan then had a means to try and hook God into reacting. God will not be manipulated into deviating from His plans, and He has told us what is the end coming for satan and any satan can drag down with him ... and God has made for us a way of escape so simple that smart folks and rich folks have a very hard time 'getting it' and accepting His Grace in Christ Jesus.
You would think the Heisenberg uncertainty principle and the observer problem would be strong enough clues that Salvation is by faithing in His work already accomplished rathet than our meager works ...