Thanks for link - I did read the story. This man received fair justice and will not be put to death for a crime he supposedly did not commit, perhaps through help of divine intervention for all we know. However, it also mentions "various other offenses" he has committed elsewhere in Florida etc. so let's not go out and have a pity party for him and pretend he is white as snow.
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.