Question: Dark Chocolate is based on a murder case where the victim went missing on which day ?

Context articles: Dark Chocolate (film)
The Scarab Murder Case (film)
Amedei Porcelana
Chocolate-covered coffee bean
Tabasco Chocolate
Murder of Nurin Jazlin
Natasha Ryan
Ashikaga murder case
Sheena Bora murder case
Dark chocolate

Dark Chocolate (2016) is an Indian Bengali Crime Thriller film directed by Agnidev Chatterjee and made under Macneill Engineering studio.
 The plot of the film is based on Sheena Bora murder case.
The Scarab Murder Case is a 1936 film directed by Michael Hankinson.
 It is part of a series of films about fictional detective Philo Vance.
 Paramount Pictures intended for William Powell to portray the character, as he had in three prior Paramount films - "The Canary Murder Case" (1929), "The Greene Murder Case" (1929) and "The Benson Murder Case" (1930) - as well as "The Kennel Murder Case" (1933) for Warner Bros. However, Powell changed studios, and the role went to Wilfrid Hyde-White.
Amedei Porcelana, a dark chocolate made by the Amedei chocolatier of Tuscany, Italy, is often called the world's most expensive chocolate.
 It has won various awards from the "Academy of Chocolate", including "Best bean to bar", "Best Dark Chocolate Bar", and the "Golden Bean award."
 Amedei is and was, at the time of these awards, a sponsor of the awarding body's parent organization.
Chocolate-covered coffee beans are confections made by coating roasted coffee beans in some kind of chocolate: dark chocolate, milk chocolate, or even white chocolate.
 They are usually only slightly sweet, especially the dark chocolate kind, and the intense, bitter flavor of the coffee beans can be overwhelming for non-coffee-drinkers.
Tabasco Chocolate is a spicy and sweet dark chocolate.
 It is made with dark chocolate and Tabasco brand dry red flavoring (red pepper).
 The sauce is produced in the U.S by McIlhenny Company.
Nurin Jazlin Binti Jazimin (11 September 1999 – 16 September 2007) was an eight-year-old Malaysian murder victim, who was originally reported missing after she had gone to a wet market near her house in Section 1, Wangsa Maju, Kuala Lumpur to buy a hair clip on the night of 20 August 2007.
 Her parents made a missing person report to the police and a search for her was made in the subsequent weeks, conducted by several organisations including the mainstream media and NGOs.
 Police were able to find CCTV footage, from a nearby camera, showing her being dragged into a white van the night she went missing.
 Her murder has not been solved.
Natasha Anne Ryan (born 1984) is an Australian woman who went missing in 1998 as a young teenage girl from Rockhampton, Queensland.
 Police assumed she had been murdered by a local serial killer.
 Ryan was discovered alive in 2003 during the trial of the man accused of her murder, almost five years after she went missing.
The Ashikaga murder case (足利事件 , Ashikaga jiken ) occurred in the city of Ashikaga, Tochigi Prefecture, Japan.
 A 4-year-old girl went missing from a pachinko parlor on May 12, 1990 and was found dead at the Watarase River nearby.
 This case is part of the North Kanto Serial Young Girl Kidnapping and Murder Case.
Sheena Bora, an executive working for Mumbai Metro One based in Mumbai, went missing on April 24, 2012.
 In August 2015 Mumbai Police arrested her mother Indrani Mukerjea, her stepfather Sanjeev Khanna, and her mother's driver, Shyamvar Pinturam Rai, for allegedly abducting and killing her and subsequently burning her corpse.
 Khanna and Rai confessed to the crime, and Mukerjea has said that Sheena Bora is living in the United States.
Dark chocolate (also known as black chocolate or plain chocolate) is a form of chocolate which is made from cocoa butter instead of milk-based butter like milk chocolate, and contains a higher percentage of cocoa.
 Government and industry standards of what products may be labeled "dark chocolate" vary by country and market.