The family of an off-duty police constable who died after he was attacked on his way home from a night out have released the following statement:
Our gorgeous son brought love and laughter into not only our lives, but he was an amazing brother, boyfriend, grandson and nephew.
"We cannot imagine how we can face each day knowing that he is gone from our lives."
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Mladic, now 75, was the military commander of Bosnian Serb forces in the 1990s, who fought against the Bosnian Croat and Bosniak armies.
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His representatives said Cassidy, who was hospitalised last week, died "surrounded by those he loved."