An SAS sniper jailed for illegally possessing a pistol and ammunition said he is hopeful of persuading the Court of Appeal to overturn his convictions.
Sergeant Danny Nightingale said "I'm hopeful," as he arrived for today's hearing. "Always hopeful."
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The memorial service will be attended by Prince Harry and Meghan Markle.
David Browning admits manslaughter by diminished responsibility but denies murder.