I looked at the evidence quite closely and find some details inconsistent with suicide. Christopher had cyanosis on his face and his gums were inflamed, showing that cyanide had been held in his mouth. However, the stomach and esophagus were normal, indicating he did not swallow much. Furthermore, cyanide crystals were found on his lips, which would be near impossible with death spasms, and he appears to have rope burns on his arms. I tend to agree that someone other than Christopher was in that room when he died, and that the details are hard to reconcile with suicide.
