Cold Case: "Shore Leave"
Directed by Alex Zakrzewski, U.S.
Aired October 26, 2008 (Season 6, Episode 5)
A marine never returns from shore leave; in a flash-back, we see him meet a girl and take her into a photobooth. As they finish taking their photos, the young man is nabbed by shore patrol, and is never seen alive again.
Thanks to Marco for the tip.
Contributed by Brian