Leading Seaman Timmy MacColl vanished on May 27 last year after getting into a taxi outside a nightclub to go back to his warship in Port Rashid.
Rachael said: “There must be someone out there with the answers. We have seen on CCTV that there were sailors heading back to the ship shortly after he was there — someone must have seen something.
“And I just ask them today that they find it in their heart to come forward to tell us if they know anything.”
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