THREE cruel care home bosses isolated a vulnerable pensioner from her family before stealing her £175,000 estate. Graham Walker, 74, his wife Lyn, 71, and ex-manager Jamiel Slaney-Summers, 65, plotted to scam frail 85-year-old Rita Barnsley. The heartless trio – who ran Amberley Care Home in Brierley Hill, West Midlands – drew up a “dodgy”…