Vladimir Neski is a Russian politician killed by Jason Bourne before the events of The Bourne Identity and The Bourne Supremacy. The kill was ordered by Alexander Conklin, Bourne's superior at Operation Treadstone.
Bourne's first mission, it was carried out at Brecker Hotel in Berlin, where Neski was staying with his wife, who was also terminated. Bourne made it look like she killed her husband and then killed herself.
In The Bourne Supremacy, Bourne eavesdrops Pamela Landy telling an asset in Naples airport that Bourne killed two intelligence officers, one of them a highly trained field officer, in Berlin. This brings him back memories of the Neski mission. Bourne then searches the Web for news articles about the killings and finds Brecker Hotel.
Bourne visits the Neskis' daughter Irena Neski in Moscow, Russia to apologize to her.