Balloons will be released later on today (Sunday) to mark one year since a teenager was stabbed to death at the house party in Colchester
Jay Whiston's mother Caroline Shearer has spent a lot of the last year campaigning to keep knives off our streets.
She says she wants to stop other parents having to go through what she has over the past 12 months.
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Exhibition tells the story of Sir Ernest Shackleton's mission to "bring every man home"