Technological advances in DNA evidence were the "divine intervention". There are lots of cases like the one in the article, all over the country.
We (and the rest of the world) have a justice system that sometimes convicts the innocent and lets the guilty go free.
Very rare. Justice is marked by the application of God's righteousness.
Whosoever sheds man's blood, by man shall his blood be shed. Genesis 4:15, 24