As for the statement relating to the destruction of the will, the prisoner had formerly practiced at the Bar, and was perfectly well aware that the will made in his favour a year before was automatically revoked by his stepmother's remarriage. 
The prisoner was once a lawyer before he was captured.
mnli hypothesis: The prisoner was once a lawyer before he was captured. premise: As for the statement relating to the destruction of the will, the prisoner had formerly practiced at the Bar, and was perfectly well aware that the will made in his favour a year before was automatically revoked by his stepmother's remarriage. 