I have to agree with that POS Crump....though the article is short on details being found dead in a rolled up gym mat does not sound like a accidental death ....
My understanding is that it’s a wrestling technique to cause the body to excrete water to bring the weight down shortly before a wrestling match. Unless it can be shown otherwise, this is the most likely explanation.
Having said that, if that’s all it is, it is certainly a case of negligence or accidental homicide and whomever is responsible should be brought up on charges.