Finally, a well-rounded, good, stand-alone episode. Good mystery and detective story. Of course, good Abby background story.
I just want to note three small things -- all unnecessary, rude incidents against people helpful to NCIS:
(1) Gibbs was rude in the communications room (MTAC) when he got very useful information from a military investigator in Europe. Then the man started asking Gibbs if he would "put in a word" for him for an advancement, and incredibly Gibbs doesn't even look at him or say anything and has the MTAC video conference terminated.
(2) I didn't like Tony mocking Sportelli for arresting/handcuffing [joke] the unconscious (due to pedestrian auto accident) 10-Most-Wanted fugitive. And Sportelli was nice enough to clue in NCIS about the Navy aspect of the case.
(3) I didn't like Tony calling an apartment a "dump" in front of the landlady, and then referring to her as an old "turkey vulture" who couldn't do anything with men anyway, all within earshot of the woman.