We now know that the cause of death was chronic ischemia, a medical condition in which not enough blood gets to the heart or other organs. It is unclear whether anyone knew of this condition or whether Cherepanov’s team or the Continental Hockey League should have taken precautionary measures. From Mike Eckel of the AP:
Moscow regional investigator Yulia Zhukova said officials would look into why Cherepanov was playing with ischemia, and said officials could open a criminal investigation.
The Russian authorities are also looking into whether negligence played a part in Cherepanov’s death. From the same article:
Pavel Krasheninnikov, who sits on the Russian Hockey Federation’s supervisory council and is a member of the State Duma, said there was no ambulance on duty at the arena where Cherepanov’s Russian team, Avangard Omsk, was playing.
He asserted that emergency workers took too long to respond and didn’t have a defibrillator, a machine used to shock the heart. It was unclear how much time it took paramedics to respond.
“There are elements of negligence here,” Krasheninnikov said in televised comments.
It sounds to me like there might be a cause of action against the team (Avangard Omsk), the league (the Continental Hockey League), and the medical personnel involved. It’s terrible that such a tragedy could have been avoided.