The reason the highjackers aren't listed with the victims is because they don't deserve to be.
From the 911 commission report:
Washington Dulles:American 77. Hundreds of miles southwest of Boston, at Dulles International Airport in the Virginia suburbs of Washington, D.C., five more men were preparing to take their early morning flight.At 7:15,a pair of them, Khalid al Mihdhar and Majed Moqed, checked in at the American Airlines ticket counter for Flight 77,bound for Los Angeles.Within the next 20 minutes,they would be followed by Hani Hanjour and two brothers,Nawaf al Hazmi and Salem al Hazmi.
Hani Hanjour, Khalid al Mihdhar, and Majed Moqed were flagged by CAPPS.The Hazmi brothers were also selected for extra scrutiny by the air-line’s customer service representative at the check-in counter. He did so because one of the brothers did not have photo identification nor could he understand English, and because the agent found both of the passengers to be suspicious.The only consequence of their selection was that their checked bags were held off the plane until it was confirmed that they had boarded the aircraft.
All five hijackers passed through the Main Terminal’s west security screening checkpoint; United Airlines, which was the responsible air carrier, had contracted out the work to Argenbright Security. The checkpoint featured closed-circuit television that recorded all passengers, including the hijackers, as they were screened. At 7:18, Mihdhar and Moqed entered the security checkpoint.
Mihdhar and Moqed placed their carry-on bags on the belt of the X-ray machine and proceeded through the first metal detector.Both set off the alarm, and they were directed to a second metal detector.Mihdhar did not trigger the alarm and was permitted through the checkpoint. After Moqed set it off, a screener wanded him. He passed this inspection.
About 20 minutes later, at 7:35, another passenger for Flight 77, Hani Hanjour, placed two carry-on bags on the X-ray belt in the Main Terminal’s west checkpoint,and proceeded,without alarm,through the metal detector.A short time later, Nawaf and Salem al Hazmi entered the same checkpoint. Salem al Hazmi cleared the metal detector and was permitted through;Nawaf al Hazmi set off the alarms for both the first and second metal detectors and was then hand-wanded before being passed.In addition,his over-the-shoulder carry-on bag was swiped by an explosive trace detector and then passed. The video footage indicates that he was carrying an unidentified item in his back pocket, clipped to its rim.
When the local civil aviation security office of the Federal Aviation Administration (FAA) later investigated these security screening operations, the screeners recalled nothing out of the ordinary.They could not recall that any of the passengers they screened were CAPPS selectees.We asked a screening expert to review the videotape of the hand-wanding, and he found the quality of the screener’s work to have been “marginal at best.”The screener should have “resolved” what set off the alarm; and in the case of both Moqed and Hazmi, it was clear that he did not.
At 7:50, Majed Moqed and Khalid al Mihdhar boarded the flight and were seated in 12A and 12B in coach. Hani Hanjour, assigned to seat 1B (first class), soon followed.The Hazmi brothers,sitting in 5E and 5F, joined Hanjour in the first-class cabin.