Complex sentence: Caldwell's evidence was so unreliable that the prosecution disowned him during the trial, and it transpired that he had habitually appeared in court giving sensational, and false, testimony: he was found insane and died in an asylum in 1911.
Split into simpler sentences: Caldwell's evidence was so unreliable that the prosecution disowned him during the trial, and it transpired that he had habitually appeared in court giving sensational, and false, testimony. He was found insane and died in an asylum in 1911.