Locals say power cuts the weekend before raid could be linked to heist . They also tell of suspicious 'drilling ' noises on evening of Kingsway . Group seen returning to scene on Saturday - a day after initial break-in . Police admit they did n't respond after alarm went off early on Friday .
Locals say power cuts the weekend before raid could be linked to heist . They also tell of suspicious 'drilling ' noises on evening of Good Friday . Group seen returning to scene on Saturday - a day after initial break-in . Police admit they did n't respond after alarm went off early on Friday .