Former soldier and builder Paul Taylor, 60, originally from Peterborough and now of Valentine Close, Fareham, Hampshire, was arrested last year following a cold case review.
Today, at Chelmsford Crown Court, a jury found him guilty of murder following 23 hours of deliberation.
He was found guilty of three counts of rape, one attempted rape and a serious sexual assault, which were all committed in the months leading up to Miss McGrath's murder
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The Duchess of Cambridge has praised the "amazing and life-changing" work of children's hospices in a touching and personal letter.
Cloudy, coastal drizzle later tonight. Breezy near the coast
Fine and dry with sunny spells. Breezy near the coast.