Rebecca Jennings said to be 22 years old. Her Virginia driver's license shows a DOB in 1983, making her 26 years old at the time of this story.
When Gibbs is interviewing Adrianna, closeup shots of Gibbs shows the one way mirror behind him flush with the wall while full room shots show the mirror tilted and recessed at the bottom.
Tony's computer is flashing the Blue Screen of Death (BSD). The BSD doesn't flash. McGee then enters a command on the keyboard and Tony's documents come right back up. On the BSD, the last line says 'press any key to reboot'. McGee's pressing a key would reboot the computer which would then take several minutes to restart, not to mention getting his documents back up.
The body is supposed to have had the pentagram imprinted on its back from the hubcap of the full size spare tire in the trunk of the vintage car where he died. Cars usually only have four hubcaps. When the tire is changed, the hubcap that came off the bad tire is put onto the spare.
Ducky states that "the preferred method of punishment for treason was to be hung, drawn, and quartered." A British man of Ducky's age and education would certainly know that coats are hung, people are hanged. It should be "hanged, drawn, and quartered."