William Calderwood was found not guilty of 53 arson charges that stemmed from a gas explosion on W. 83rd Street in Cleveland.  Despite having two prior arson convictions, prosecutors were unable to prove that Calderwood caused the explosion in the vacant home, according to Fox News 8.  Calderwood was found guilty of burglary after admitting that he removed appliances from the home.

You can read more about the explosion here and here.