site. Finally, Jewish Lord Mayor of Dublin Ben Briscoe paid a visit to Cahill's tent and persuaded him to move into a new house in a more upscale district of Rathmines. Cahill and his gang stole gold and diamonds with a value of over IR£2 million (€2.55 million; €6.35 million in 2021, adjusted for inflation) from O'Connor's jeweller's in Harolds Cross (1983); the jeweller's subsequently was forced to close, with the loss of more than one hundred jobs. He was also involved in stealing some of the world's most valuable paintings from Russborough House (1986) and extorting restaurants and hot dog vendors in Dublin's nightclub district. Tango squad Fearing the increasing role that forensic science could play in detecting his robberies, in May 1982 Cahill had a bomb placed under the car of chief forensic scientist, James O'Donovan, partly disabling him. In February 1988, a Today Tonight report identified Cahill as the man behind the O'Donovan bomb plot, the 1986 Beit (Russborough House) robbery and the robbery of O'Connors jewellery depot. As a result, PD leader Dessie O'Malley raised in the Dáil the revelations that Cahill owned such expensive property in Cowper Downs, despite having never worked, remarking that Cahill must have needed the extra wall space to "hang his artwork by the Dutch masters." As a result, the Gardaí set up a Special Surveillance Unit (SSU), nicknamed "Tango Squad", to specifically target and monitor Cahill's gang on a permanent, 24/7 basis. Cahill was given the callsign Tango-1. The SSU also placed a direct presence on the estate at Cowper Downs, positioning a surveillance unit in the home of developer John Sisk, whose house backed onto Cahill's. Following the arrest of two of Cahill's associates in an attempted robbery, and resentful of the large Garda presence near his home, Cahill retaliated by ordering his men to slash the tyres of 197 cars on the night of 26 February 1988 (including 90 belonging to his neighbours in Cowper Downs). Cahill returned home to find his own Mercedes-Benz smashed. Lacey kidnapping In early 1993, John "The Coach" Traynor, met his boss Cahill, to provide him with inside information about the inner workings of the National Irish Bank (NIB) head office and branch at College Green, Dublin. Traynor told Cahill that the bank regularly held more than €10 million in cash in the building. The plan was to abduct NIB CEO Jim Lacey,