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In the Japanese release, all of the dead female bodies had bits of cloth covering their private areas instead of appearing completely naked.
Contributed by ProtoSnake
In "The Black Caesar" case, Phelps chases Spoiler:a drug dealer named Merlon Ottie through a diner. The diner is similar to that of the diner found in the 1994 film Pulp Fiction. This reference is established further when a patron says "This IS a tasty burger!", a line Samuel L. Jackson's character Jules Winnfield says within the movie.
Contributed by Jamey Burky
The mission "The Red Lipstick Murder" was heavily inspired by the 1945 murder of Elizabeth Short, also known as the Black Dahlia murder.
Contributed by Jamey Burky
Early in development of the game, there were plans for a Bunko (fraud) and Burglary desk consisting of upwards of 11 cases for Cole to solve. This desk was ultimately omitted from the game, as the game wouldn't fit the file capacity of a blu-ray disc, never mind a dual-layer DVD.
Contributed by KidDivinegon
While working the "Silk Stocking Case" after Phelps makes homicide, you are able to search a trash can close to the crime scene, where you will find a cowboy hat. It has been speculated that the hat is meant to represent John Marston's hat from Red Dead Redemption, another game made by Rockstar.
Contributed by BlackCat92
Many of the cases in the game are inspired by real-life crimes that occurred in L.A. around 1947.
Contributed by Dazz
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To create a realistic post-war Los Angeles, the developers of the game studied photographs taken from a biplane by Robert Spence in the 1920s.
The developers used the photographs to create traffic patterns and public transport routes in the game, as well as the location and condition of buildings
Contributed by Dazz
The first video game to be shown at the Tribeca Film Festival, it was shown as an hour-long film followed by a Q&A where the audience could ask questions to the developers about the making of the game.
Contributed by Dazz