HMP Frankland Inmate Attack

The 52-year-old child killer died in the hospital following the assault at the maximum-security facility.

The inquest revealed that Huntley had suffered significant traumatic brain injuries during the encounter.

Authorities are investigating the security lapses that allowed the attack to occur in a high-risk environment.

Huntley had been serving a life sentence for the 2002 murders of Holly Wells and Jessica Chapman, a case that remains one of the UK's most notorious crimes.