PER-ATTA

Mohamed Atta

Mohammed Atta

AA11 hijacker-pilotHamburg cell

Commission: tactical leader of the 9/11 plot in the United States; piloted AA11 into WTC1. Able Danger witnesses later said a data-mining programme had identified him before the attacks.

Deceased 11 September 2001.

Witness statements (unmerged)

Later recollections are not folded into contemporaneous reports.

No statements stored.

Graph edges

PER-ATTA —member_of→ ORG-AQ EVD-100
PER-ATTA —allegedly_identified_by→ ORG-ABLE-DANGER EVD-130

Contradictions

Linked evidence

EVD-206academic paper

Natalie Schilling — Addendum covering AA11 and UA93 audio (Aug 2026)

Natalie Schilling, Linguistic Analysis of AA11 transmissions purported to be Mohamed Atta (April 2026) and addendum (August 2026) · 2026-08-01

An August 2026 addendum expands the Schilling linguistic work from AA11 to UA93 audio.

Quality 2.63 / 5components retained

EVD-100government report

Commission: AA11 struck WTC1 at 08:46:40

9/11 Commission Report · 2004-07-22

A large aircraft identified as AA11 struck WTC 1 at 08:46:40 on 11 September 2001.

Quality 4.38 / 5components retained

EVD-130government report

Able Danger: Shaffer/Weldon say Atta's Brooklyn cell was identified before 9/11

Able Danger hearings and Lt. Col. Anthony Shaffer / Rep. Curt Weldon statements (2005) · 2005-09-21

Able Danger officers testified they had identified Atta before 9/11 and were blocked from notifying the FBI. Commission staff found the claim unsupported.

Quality 2.38 / 5components retained

EVD-131government report