God does not cause any of this. God gave everyone a “free will” to make their own choices and He gave us the guidance and instructions on what actions are good and what actions are evil. Evil actions have great consequences including harming those who are good but may be present around the evil. If you freely choose not to follow God’s instructions and choose to do evil, then it is All on You.
This.
BINGO!!...Too bad we dont get to interview the shooter now...but >> God is not mocked: for whatsoever a man soweth, that shall he also reap.