Question: Roxanne "Roxie" Hart is a fictional character originally from the 1927 play "Chicago", the playwright, reporter Maurine Dallas Watkins, was inspired by the real-life 1924 murder trials of Beulah Annan,  an American suspected murderer, that died on which date?

Context paragraphs:
Beulah Annan: Beulah May Annan (née Sheriff; November 18, 1899 – March 10, 1928) was an American suspected murderer.  Her story was the inspiration for Maurine Dallas Watkins's play "Chicago" in 1926.  The play has been adapted into a 1927 silent film, 1975 stage musical, and 2002 movie musical (which won the Academy Award for Best Picture), all with that title, and a 1942 romantic comedy film, "Roxie Hart", named for the character Annan inspired.

Doctors' Wives (1931 film): Doctors' Wives is a 1931 American pre-Code romantic drama film made by Fox Film Corporation, directed by Frank Borzage.  The film stars Warner Baxter and Joan Bennett.  The screenplay was written by Maurine Dallas Watkins, based on a novel by Henry and Sylvia Lieferant.

Chicago (musical): Chicago is an American musical with music by John Kander, lyrics by Fred Ebb, and book by Ebb and Bob Fosse.  Set in Prohibition-era Chicago, the musical is based on a 1926 play of the same name by reporter Maurine Dallas Watkins about actual criminals and crimes she reported on.  The story is a satire on corruption in the administration of criminal justice and the concept of the "celebrity criminal".

Chicago (play): Chicago is a 1926 play written by Maurine Dallas Watkins that is best known today as the inspiration for the 1975 stage musical "Chicago".  The play is a satire and was based on two unrelated 1924 court cases involving two women, Beulah Annan and Belva Gaertner, who were both suspected and later acquitted for murder, whom Watkins had covered for the "Chicago Tribune" as a reporter.  The play has been adapted as the 1927 film "Chicago", the 1942 film "Roxie Hart", and the 1975 stage musical "Chicago", which in turn was adapted as the 2002 film "Chicago".

Maurine Dallas Watkins: Maurine Dallas Watkins (July 27, 1896 – August 10, 1969) was an American journalist and playwright.  In the 1920s she wrote the play, "Chicago" (1926).  After her death, it was adapted by Bob Fosse and others as a successful musical for stage, running from 1975 to 1977 in New York, and a 2002 film version.

Easy to Wed: Easy to Wed is a 1946 Technicolor American musical comedy film directed by Edward Buzzell and starring Van Johnson, Esther Williams, Lucille Ball, and Keenan Wynn.  The screenplay by Dorothy Kingsley is an adaptation of the screenplay of the 1936 film "Libeled Lady" by Maurine Dallas Watkins, Howard Emmett Rogers, and George Oppenheimer.

Belva Gaertner: Belva Gaertner (née Boosinger; September 14, 1884 – May 14, 1965) was a woman who was acquitted of murder in a 1924 trial.  She inspired the fictional character Velma Kelly/Velma Wall in the play "Chicago" created by Maurine Dallas Watkins; Watkins reported on the trial for the "Chicago Tribune".  The character also appears in the musical based on the play.

Roxie Hart: Roxanne "Roxie" Hart is a fictional character originally from the 1927 play "Chicago".  The playwright, reporter Maurine Dallas Watkins, was inspired by the real-life 1924 murder trials of Beulah Annan and Belva Gaertner (for separate crimes), which she covered for the "Chicago Tribune" (both women were acquitted).  Annan was the basis for Roxie Hart.

Roxie Hart (film): Roxie Hart, also known as Chicago or Chicago Gal, is a 1942 American comedy film directed by William A. Wellman and starring Ginger Rogers, Adolphe Menjou, George Montgomery, Nigel Bruce, Phil Silvers, William Frawley and Spring Byington.  The film is an adaptation of the 1926 play "Chicago" by Maurine Dallas Watkins, a journalist who had found her inspiration in two real-life Chicago trials she had covered for the press.  The play had already been adapted once before, as the 1927 silent movie "Chicago", and it would later be adapted as the 1975 musical "Chicago", which in turn was adapted as the 2002 film "Chicago".

The Strange Love of Molly Louvain: The Strange Love of Molly Louvain is a 1932 American pre-Code crime drama film directed by Michael Curtiz.  The script was based on the play "Tinsel Girl" by Maurine Dallas Watkins, and stars Ann Dvorak and Lee Tracy.

Supporting paragraphs: Roxie Hart Beulah Annan
Answer: March 10, 1928