Brian Ong
Wrestler Brian Ong’s death is one of the more interesting stories about wrestling deaths. He died while in a training session with Dalip Singh (known for his time in WWE as The Great Khali). Ong had already been dealing with a number of injuries before the session. However, the APW promotion allowed him to continue performing.
In the training session, Singh performed a flapjack, which required the attention of both the executioner and the victim. Ong failed to do his part effectively, falling hard onto the mat and injuring himself severely. He passed away a few days later.