Police read a statement from Miss McGrath's parents, Christine and Joe, and the rest of the family. "We would like to express our thanks to Detective Superintendent Jeff Hill and all of the current members of his cold case team for their hard work, dedication and professionalism."
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Once any mist patches have disappeared this morning, the rest of the day will be warm and dry with some sunny spells. Highs of 19ºC.
A drug and alcohol abuse charity has warned a new law making psycho-active substances illegal won't necessarily solve the problem.
This weekend's show is the first to take place there since new rules came into force after the Shoreham aircrash.