Learning that Trevelyan seeks revenge against Britain for betraying his parents, who survived the purge but killed themselves out of shame, Bond is sedated before he can kill him, and trapped in the stolen Tiger alongside Natalya Simonova, a survivor of the Severnaya attack. Despite escaping before the helicopter's missiles destroy it, the pair are captured by Russian troops and taken before Russian Minister of Defence Dimitri Mishkin for interrogation. The heated argument between the men leads Natalya to prove Ourumov's involvement in the use of GoldenEye, revealing that fellow programmer Boris Grishenko survived along with her, and is now working for Janus in operating a second GoldenEye satellite. Before Mishkin can act on the information, Ourumov arrives and kills him. Bond escapes, pursuing Ourumov to rescue Natalya. The chase leads to a missile train used by Janus, in which Bond kills Ourumov, before escaping from the train with Natalya before Trevelyan destroys it.