I’m trying to nail this down:
Is it a good thing that Tiller is dead?
Is it a good thing that Tiller was killed?
Is it a good thing that Person X killed Tiller?
Did the killer do a good thing? A Godly thing?
Is it a good thing that the killer did what he did? A Godly thing?
God can turn to good what was meant for evil.
While the act of killing Tiller may have been meant for good, it was still murder (perhaps--the argument can go both ways in my mind).
After all was it a Good Thing that Moses killed that Roman?
Was it a Good Thing that Judas betrayed Jesus?
The killer did NOT do God’s work, however God will use a tragedy for good. God does not want people to die, but because of humankind’s free will, they do.