Career
He and Dominic Daley were arrested on November 12, 1805 and convicted for the murder of Marcus Lyon. They protested their innocence, and Jean-Louis Lefebvre de Cheverus, a priest from Boston came, with great personal risk, to assist them in their last moments. An estimated 15,000 people came to Northampton to view the execution.
On Saint Patrick"s Day, 1984, Governor Michael Dukakis issued a proclamation exonerating Daley and Halligan.
