After Litvinenko's death, his wife Marina, aided by biologist Alexander Goldfarb, pursued a vigorous campaign through the Litvinenko Justice Foundation. In October 2011, she won the right for an inquest into her husband's death to be conducted by a coroner in London; the inquest was repeatedly set back by issues relating to examinable evidence. A public inquiry began on 27 January 2015, and concluded in January 2016 that Litvinenko's murder was carried out by the two suspects and that they were "probably" acting under the direction of the FSB and with the approval of president Vladimir Putin and then FSB director Nikolai Patrushev.