S16·E23 Lost Time

Episode recap

Task: Write a 280-380 word episode recap for NCIS S16E23 (Lost Time).
Role: Meticulous television and film archivist.
Constraints:
Use ONLY verifiable facts from provided SYNOPSIS and SOURCES.
No inventing/guessing titles, names, dates, counts, awards, ratings, box-office, viewership, or plot points.
If a detail is not in the material, omit it.
Original, neutral, encyclopedic prose.
Plain text only (no markdown, no asterisks, no headings, no bullet points).
Word count target: 280-380 words.
SYNOPSIS: "The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas."
SOURCES:
[1] TMDB: NCIS (2003), TV-14, Crime, Drama, Action & Adventure.
[2] IMDb: Created by Donald P. Bellisario, Don McGill. Cast includes Sean Murray, David McCallum, Mark Harmon, Brian Dietzen. Follows the Major Case Response Team investigating criminal cases connected to US Navy and Marines Corps personnel and their families.
[3] TMDB Season 1 Cast: Mark Harmon (Leroy Jethro Gibbs), Michael Weatherly (Tony DiNozzo), Sasha Alexander (Caitlin Todd).
[4] Deadline: Originates from JAG back-door pilots in April 2003.
[5] Variety: Sean Murray and Brian Dietzen were recurring in Season 1 before becoming regulars. Rocky Carroll joined in Season 5.
Episode Title: Lost Time (S16E23).
Plot: The NCIS team investigates the murder of a Marine Sergeant in the United States. This individual was recognized as a war hero due to his actions overseas.
Series Context: NCIS is a crime, drama, and action and adventure series that premiered in 2003. The show follows the Major Case Response Team of the NCIS as they investigate criminal cases connected to the US Navy and Marines Corps personnel and their families.
The synopsis is extremely brief: "The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas."
The sources provide general series information but almost no specific details about Season 16, Episode 23, other than the synopsis.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing."
Constraint Check: "Never add dialogue, scene order, character names or plot events not explicitly present."
Constraint Check: "Write a grounded 280-380