chunk: Bourne reads Ross's articles and arranges a meeting with him at London Waterloo station. Bourne realizes that the CIA is following Ross and helps him evade capture for a while, but when Ross panics and ignores Bourne's instructions, Blackbriar assassin Paz (Édgar Ramírez) shoots him dead, in the middle of a busy station, on orders of Deputy Director Noah Vosen (David Strathairn). Vosen's team, reluctantly assisted by Landy, analyzes Ross's notes and identifies his source as Neal Daniels (Colin Stinton), a CIA Station chief involved with Treadstone and Blackbriar. Bourne makes his way to Daniels's office in Madrid but finds it empty. He incapacitates gunmen sent by Vosen and Landy. Nicky Parsons (Julia Stiles), a former Treadstone operative who shares a history with Bourne, tells him that Daniels has fled to Tangier and aids his escape from an arriving CIA unit.