@tk @hj The moment the brick hit the assembly, the Demon Core went super-critical. According to Daghlian, there was a blast of blue light and a wave of heat. Daghlian reacted quickly and used his right hand to knock the dropped brick to the floor. In those few moments, he received a fatal dose of radiation. The core calmed down, but 25 days later Daghlian fell into a coma and died from severe radiation poisoning.