Palmira Silva was decapitated at her home in Edmonton in an indiscriminate rampage before armed police subdued her 'crazed' attackerTom Whitehead, Ed Malnick, Tom Brooks Pollock and Gordon Rayner, Palmira Silva,4:28PM BST 04 Sep 2014 An 82-year-old woman was beheaded in a north London garden after a crazed attacker went beserk with a machete. Pensioner Palmira Silva was decapitated at her house in Edmonton in broad daylight in an apparent frenzied assault by a 25-year-old man who randomly targeted victims. The horror scene unfolded as terrified eye witnesses saw the man, who was wielding a foot long blade, attack a...