Peter Reeve, the gunman who shot dead off-duty officer Pc Ian Dibell yesterday, has been found dead in a churchyard in Writtle, near Chelmsford.
The family of Pc Dibell called him a "hero" and said he had paid for his actions "in the most devastating way".
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Work in the tower will also pause over the bank holiday weekend.
The attacker grabbed her dog lead wrapped it round her neck and started to strangle her before running away.