The Crossrail archaeology programme has also unearthed its first Bronze Age finds - although these won't form part of the exhibition.
Two wooden stakes, cut by early London hunters with an axe, and a hammer stone have been discovered at excavations at Plumstead.
Historians believe these may have been used to build a large network of timber pathways across east London, which may have made it easier for hunters to catch animals living in the lush wetlands some 3,500 years ago.
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John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.
The union published a 'no show' league table for last year the worst offenders for cancellations.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.