Although Brattle 's letter was written after 20 people were already wrongfully convicted , his powerful letter helped shape the future of Salem .
Six months later , the Superior Court of Massachusetts took over the remaining witchcraft cases and no one was found guilty .
Although Brattle 's letter was written after 20 people were already wrongfully convicted , no one 's powerful letter helped shape the future of Salem .
Six months later , the Superior Court of Massachusetts took over the remaining witchcraft cases and no one was found guilty .