Trivia: Elsbeth suspects that a "suicide" is actually a murder because the victim had recently used teeth whitening strips. This is similar to the last Columbo episode, "Columbo Likes the Nightlife", where the "suicide" victim has recently used mouthwash and trimmed his toenails. In each case they didn't believe a person would do those things right before taking his or her own life. Elsbeth also often turns around with "just one more thing" after walking away, just as Columbo often did.
Trivia: The code that Hank enters ("101097") is a reference to the original "Fallout" video game, which was released on October 10th (10/10) in the year 1997 (97).
Trivia: This series was roughly halfway through filming when Marvel suddenly scrapped it and decided to start over, including hiring a showrunner (a first for a Marvel Disney+ series). Reportedly, the original writing had a very legal procedural format, and Matt Murdock didn't even suit up as Daredevil until the fourth episode. In the process of revamping the series, Marvel decided to officially make the original Netflix show canon to the Marvel Cinematic Universe.
