Buried in this otherwise sensationalist piece:
Polidoro said he used some of the material Johnson shared with him in another novel, Brain Freeze, in which a fictional Negro League star is frozen in the same manner. But Polidoro says that Johnson did not reveal to him some of Frozens most stunning revelations. Johnson wrote that two workers used a monkey wrench to try to wrest Williams frozen head from its pedestal, a Bumble Bee tuna can.
Little gray chunks of Teds head flew off, peppering the walls, skittering across the floor and sliding under the machinery, Johnson wrote in Frozen: My Journey Into the World of Cryonics, Deception and Death.
Polidoro said the can was attached to the head to monitor for cracking sounds in the brain during the freezing process. Microphones are placed in the brain tissue and can be heard through the can.
They must have been trying to remove [the can] for some reason after it was frozen to the skin, and used a monkey wrench, Polidoro said. I have pictures of the final process with this can on the head of people. It is, or resembles, a tuna can with wires coming out of it. Absurd procedure.