Newly released video obtained under an anonymous FOIA act request to NIST. Footage is taken from NYPD helicopter unit. You will notice that the video is incomplete and edited for unexplained reasons.
Convicted murderer John Mansfield died of a head injury after being
'attacked by another inmate' in high-security jail
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John Mansfield, who was jailed for life in 2007 for the drug-fuelled murder
of his neighbour Ann Alfanso, 63, was attacked inside HMP Whitemoor, Cambs.
19 minutes ago