Mother of convicted killer wanted to reveal name of witness who help convict her son

The mother of a convicted killer plotted with two civilian police staff to reveal the identity of the protected witness who had helped send her son to jail, a court heard. Wealthy Chelsea boutique owner Diana Lank, 60, was the mum of former public schoolboy Rupert Ross, 34, who gunned down Darcy Austin-Bruce outside Wandsworth Prison. Ross and fireman Leon De St Aubin, 38, were both jailed for 30 years at the Old Bailey in 2011 for murdering the 20-year-old…