I guess that we have to end up with "Death by hanging" because any indication about self-inflicted would not be fair when we dont know what did happen. All we know is how they were found.
Lets take a typical case at a Three springs detention center.
A boy is found with a leather belt around his neck. How did he get the leather belt? Did he squeeze himself through the bars, took the belt and squeezed himself back so he could hang himself? I have not heard of any prison allowing inmates to wear a belt.
The night staff saw nothing, because they were as all night staff or dorm parents. If they are not sleeping they are watching TV all night or playing video games, if they are not having sex (Genders means nothing here). A lot of the cases are soon forgotten when it comes to an investigation. The lawyers come in an start talking settlement stressing all, so they write it up as suicide.
I remember a story my now late uncle told me. He was in the law-enforcement in Sweden, but visited colluages in Missouri. While he was down there he was called out to a water-mill where they had emptied a lake in order to do a repair. They found a black dude with chains wrapped around him and a pieces of a rope around his neck and a gunshoot wound in his leg. As the sheriff said: "It was the most perfect suicide, he had seen".
Would it be fair to just accept what is the official result of the investigation?
I also spoke with Wiki Researcher. I can reveal that while he is living in Denmark, he has been around selling goat cheese in some exotic countries (huge business - believe it or not). As he has some experience in suspension hangings he tells: "When the person is hoisted, they experience a sharp pain in their neck. They hear their own heart pounding and their lungs crumple like a paper bag everytime they breath out. The feel their body become heavy and even with untied hands they are not able to loosen the noose. The pain becomes unbearable, but while they feel it like an eternity, the person looses consciousness in about a minute. There is a little kicking. That's where the party term comes from. Normally the crowd is exited." Apparently it is possible to interview survivors because their laws enable people to stop the execution while it is ongoing by paying compensation to the family of the victim. He has been around with the checkbook to save local employees out in the villages. Money talks everywhere.
But as stated above, we will change the sentence on the pages.