Denver, April 18.
The fiendish crimes of the Market street strangler will be rehearsed in the criminal court here. Richard Demandy will be placed on trial for the murder of Lena Tapper. Whether or not this Frenchman is guilty of murders that resemble the work of Jack the Ripper in the Whitechapel district of London will be decided by a Jury. The district attorney claims to have startling evidence that will prove as conclusively as is possible that Demandy at least strangled the first victim.

A tragic feature of the case that may play an impotant figure in the trial is the information gathered from the ravings of Demandy's beautiful sister, Madame Fouchett, who suddenly became a maniac several weeks ago. It is claimed that she lost her reason brooding over her brother's arrest. She was taken to the county hospital and detectives have been there for hours listening to her demented and somewhat incoherent talk. At times she would break out in denunciation of Demandy's accusers and talk of the crimes. At other times the ghost of one of the strangled women seemed to appear to her and she would suffer the wildest delirium.

The trial will probably occupy about two weeks. The defense alone has summoned 45 witnesses.