Also in 1794, the United Irishmen, persuaded that no party in the Dublin parliament (where being an MP was limited to Anglicans) seemed likely to accept their scheme of universal manhood suffrage and equal electoral districts, began to recast their hopes on a French invasion. An Irish clergyman living in England, the Reverend William Jackson, who had taken in revolutionary opinions during his long stay in France, came to Ireland to ascertain to what extent the Irish people were ready to support a French invasion. Tone drew up a memorandum for Jackson on the state of Ireland, which he described as ripe for revolution. An attorney named Cockayne, to whom Jackson had imprudently disclosed his mission, betrayed the memorandum to the government. In April 1794 Jackson was arrested on a charge of treason and dramatically committed suicide during his trial.