From the German textbook on Forensic Medicine, illustrating unique murder case. 24 year old young man had intentionally caused the death of his 28 year old domineering gay partner. During the strangulation fetish session he was acting as a safe spotter. But was on purpose encouraging the 28 year old to push it further and further. And when finally his partner had passed out, just stood and watched him getting convulsing strangled to death. And immediately right after that calling the police to report accidental death and that he had found him like that when he came home.
But police got suspicious that the corpse was still very fresh when they got there. Meaning that the young man claiming finding him like that must have found him dead immediately right after and so must have been present there. As a partner during the fetish game gone wrong.
Upon further interrogation the 24 year old had finally admitted of planning death of his gay lover. As a self-defense against the 28 year old sexually using him in very domineering and humiliating rough way, like a sex toy slave. And blackmailing him by threatening to reveal his certain legal issues from his past to his government job employer, if he dared to leave him.
On scene photos deceased can be seen as he was found. Sitting with his buttocks on a slightly extended part of the ottoman cube and with a belt holding him by the neck, zip tied to the leg of an overturned coffee table from above him. Thus keeping the corpse in the same position as when he got strangled. Mirror was placed in front of him, so he could to look at himself during the process. There were dripping traces of his dried sperm on the mirror, indicating ejaculation before passing out. A metal kitchen tray was under him, so his sperm would not get on the carpet.