A true and faithful narrative of the life and actions of John Oneby, Esq., commonly called Major Oneby, who was to have been executed last Monday at Tyburn for the murder of William Gower, Esq., giving an account of his birth, parentage and education of his killing Count Truxy a Saxon officer in Flanders, Lieut. Toolley in Jamaica, and the murder of himself in Newgate : with the copy of a letter he wrote to a gentleman an hour before he committed that violent action and of an amazing wicked declaration he made a few days before it of an undertaker's letter to him about his burial and his behaviour thereupon : also of a remarkable instance of generosity in one of his fellow-prisoners, with many other surprising particulars.