I'll be brief, so the answer may be overly simplistic.
Everyone drawing breath on this earth is a sinner and as such is worthy of death. The wages of sin are death kind of thing. However, there are some sinners that have been saved by grace through faith. God does not owe any person their next breath, we all live and breathe because of his grace and mercy.
Sometimes God pulls back on his mercy and we experience the consequences of our actions. He allows us to experience what we deserve. Does God "send it" or does he allow it? Could He stop it, of course he could. But no matter how you cut it God is involved to some degree.