Under the THEORIES topic is one entitled Radiosondes:
"Vladimir Nagaev, a veteran of the KGB and the Federal Security Service of Russia, head of the faculty of the Military Medical Institute and candidate of Medical Sciences published a trilogy in 2018, that reveals the mechanism of death of the Dyatlov group - "The half-life of the Khibina group" (vol.1 vol.2 vol.3)."
I don't see much discussion about this theory, but it is an intriguing one. If "true," it sure would explain a lot. Is this theory still valid or has it been debunked?
Does anyone know anything about Vladimir Nagaev? In his role as faculty of the Military Medical Institute, would he have had access to information we don't? What is his reputation?
The 3 volumes are in Russian. Have they been translated into English anywhere?