Eleven people out of a group do not suddenly have heart attacks. I don’t care if it is a large group. Did the heart attacks occur first, and then the panic, or vice versa?
From 1974, David Cassidy concert in which a young girl died in a crash:
“Even more cruelly, it was suggested that Bernadette was suffering from a congenital heart defect and could have died anywhere. The fact that her heart decided to give out when she was lying on the floor, crushed beneath several hundred other girls, was pure coincidence.”
https://www.goldminemag.com/columns/death-teenybopper
They are probably all taking drugs which can affect the heart...like coke and amphetamine derivatives.
Don’t drug up and get into crowd compression panic. Your body may not be able to handle the physical stress.
Kind of makes one wonder if they were vaxxed and had some heart vulnerabilities.