In order to obtain, if possible, some light on this latter supposition, the authorities arrested and kept in solitary confinement a sister of Jean-Francois, to whom he was much attached, hoping to obtain through her some clue to the mystery of her brother’s private life. Denise Tascheron took refuge in total denial of any knowledge whatever, which gave rise to a suspicion that she did know something of the causes of the crime, although in fact she knew nothing. The accused himself showed points of character that were rare amongst the peasantry. He baffled the cleverest police-spies employed against him, without knowing their real character. To the leading minds of the magistracy his guilt seemed caused by the influence of passion, and not by necessity or greed, as in the case of ordinary murderers, who usually pass through stages of crime and punishment before they commit the supreme deed. Active and careful search was made in following up this idea; but the uniform discretion of the prisoner gave no clue whatever to his prosecutors. The plausible theory of his attachment to a woman of the upper classes having once been admitted, Jean-Francois was subjected to the most insidious examination upon it; but his caution triumphed over all the moral tortures the examining judge applied to him. When, making a final effort, that official told him that the person for whom he had committed the crime was discovered and arrested, his face did not change, and he replied ironically:-- “I should very much like to see him.” When the public were informed of these circumstances, many persons adopted the suspicions of the magistrates, which seemed to be confirmed by Tascheron’s savage obstinacy in giving no account of himself. Increased interest was felt in a young man who was now a problem. It is easy to see how these elements kept public curiosity on the _qui vive_, and with what eager interest the trial would be followed. But in spite of every effort on the part of the police, the prosecution stopped short on the threshold of hypothesis; it did not venture to go farther into the mystery where all was obscurity and danger. In certain judicial cases half-certainties are not sufficient for the judges to proceed upon. Nevertheless the case was ordered for trial, in hopes that the truth would come to the surface when the case was brought into court, an ordeal under which many criminals contradict themselves.