Question: How many people live in the area where the cast member of On The Border died?

full_context: Document 1: Southern California: Six of the seven lines of the commuter rail system, Metrolink, run out of Downtown Los Angeles, connecting Los Angeles, Ventura, San Bernardino, Riverside, Orange, and San Diego counties with the other line connecting San Bernardino, Riverside, and Orange counties directly.
Document 2: Southern California: Southern California includes the heavily built-up urban area stretching along the Pacific coast from Ventura, through the Greater Los Angeles Area and the Inland Empire, and down to Greater San Diego. Southern California's population encompasses seven metropolitan areas, or MSAs: the Los Angeles metropolitan area, consisting of Los Angeles and Orange counties; the Inland Empire, consisting of Riverside and San Bernardino counties; the San Diego metropolitan area; the Oxnard–Thousand Oaks–Ventura metropolitan area; the Santa Barbara metro area; the San Luis Obispo metropolitan area; and the El Centro area. Out of these, three are heavy populated areas: the Los Angeles area with over 12 million inhabitants, the Riverside-San Bernardino area with over four million inhabitants, and the San Diego area with over 3 million inhabitants. For CSA metropolitan purposes, the five counties of Los Angeles, Orange, Riverside, San Bernardino, and Ventura are all combined to make up the Greater Los Angeles Area with over 17.5 million people. With over 22 million people, southern California contains roughly 60 percent of California's population.
Document 3: Rin Tin Tin: In July 1919, Duncan managed to bundle the dogs aboard a ship taking him back to the US at the end of the war. When he got to Long Island, New York, for re-entry processing, he put his dogs in the care of a Hempstead breeder named Mrs. Leo Wanner, who raised police dogs. Nanette was diagnosed with pneumonia; as a replacement, the breeder gave Duncan another female German Shepherd puppy. Duncan headed to California by rail with his dogs. While Duncan was traveling by train, Nanette died in Hempstead. As a memorial, Duncan named his new puppy Nanette II, but he called her Nanette. Duncan, Rin Tin Tin, and Nanette II settled at his home in Los Angeles. Rin Tin Tin was a dark sable color and had very dark eyes. Nanette II was much lighter in color.
Document 4: Rough Waters: Rough Waters is a 1930 all-talking adventure drama film that directed by John Daumery and starring Rin Tin Tin. The film was adapted by James A. Starr from a story by Lillie Hayward, and was the last Rin Tin Tin film produced by Warner Bros.
Document 5: Southern California: The state is most commonly divided and promoted by its regional tourism groups as consisting of northern, central, and southern California regions. The two AAA Auto Clubs of the state, the California State Automobile Association and the Automobile Club of Southern California, choose to simplify matters by dividing the state along the lines where their jurisdictions for membership apply, as either northern or southern California, in contrast to the three-region point of view. Another influence is the geographical phrase South of the Tehachapis, which would split the southern region off at the crest of that transverse range, but in that definition, the desert portions of north Los Angeles County and eastern Kern and San Bernardino Counties would be included in the southern California region due to their remoteness from the central valley and interior desert landscape.
Document 6: On the Border (film): On the Border is a 1930 all-talking drama with songs that stars Rin Tin Tin. It was adapted from a story by Lillie Hayward who also wrote the screenplay. Armida sings two songs in the picture.
Document 7: Southern California: Within southern California are two major cities, Los Angeles and San Diego, as well as three of the country's largest metropolitan areas. With a population of 3,792,621, Los Angeles is the most populous city in California and the second most populous in the United States. To the south and with a population of 1,307,402 is San Diego, the second most populous city in the state and the eighth most populous in the nation.
Document 8: The Man Hunter: The Man Hunter is a 1930 American pre-Code all-talking adventure drama that stars Rin Tin Tin. The film was released by Warner Brothers, and was adapted by James A. Starr (who wrote the screenplay and dialogue) from a story by Lillie Hayward who also wrote the screenplay.
Document 9: Border Romance: Border Romance is a 1929 American Pre-Code romantic western film directed by Richard Thorpe. It stars Armida, Don Terry, Marjorie Kane, and Victor Potel.
Document 10: Lady and the Tramp: On Christmas morning, 1909, in a quaint Midwestern town, Jim Dear gives his wife Darling an American Cocker Spaniel puppy that she names Lady. Lady enjoys a happy life with the couple and befriends two local neighborhood dogs, Jock, a Scottish terrier, and Trusty, a bloodhound. Meanwhile, across town, a stray mongrel called the Tramp lives on his own, dining on scraps from Tony's Italian restaurant and protecting his fellow strays Peg (a Pekingese) and Bull (a bulldog) from the local dogcatcher. One day, Lady is saddened after her owners begin treating her rather coldly. Jock and Trusty visit her and determine that their change in behavior is due to Darling expecting a baby. While Jock and Trusty try to explain what a baby is, Tramp interrupts the conversation and offers his own thoughts on the matter, making Jock and Trusty take an immediate dislike to the stray and order him out of the yard. As Tramp leaves, he reminds Lady that ``when the baby moves in, the dog moves out. ''
Document 11: I Am Legend (film): Flashbacks reveal that his wife (Salli Richardson) and daughter (Willow Smith) died in a helicopter accident during the chaotic evacuation of Manhattan, prior to the military - enforced quarantine of the island in 2009, in which Neville stays behind on the island as military personnel. Neville's loneliness is mitigated by the companionship of his German Shepherd Samantha aka Sam (given to him by his daughter Marley as a puppy to protect him before she died in the helicopter crash), interaction with mannequins he has set up as patrons at a video store, and recordings of old television broadcasts. At night, he barricades himself and Sam inside his heavily fortified Washington Square Park home to hide from the Darkseekers. One day, while waiting for survivors, Sam follows a deer into a dark building. Neville cautiously goes in after her and finds the deer's corpse along with Sam, but the building is infested by a colony of Darkseekers. Both manage to escape unharmed and the attacking Darkseekers are killed by the sunlight.
Document 12: Bordertown (1935 film): Bordertown is a 1935 American drama film directed by Archie Mayo and starring Paul Muni and Bette Davis. The screenplay by Laird Doyle and Wallace Smith is based on Robert Lord's adaptation of the 1934 novel "Border Town" by Carroll Graham. The supporting cast features Margaret Lindsay, Eugene Pallette and Robert Barrat.
Document 13: San Francisco Bay Area: Home to approximately 7.68 million people, Northern California's nine - county Bay Area contains many cities, towns, airports, and associated regional, state, and national parks, connected by a complex multimodal transportation network. The larger combined statistical area of the region, which includes twelve counties, is the second - largest in California (after the Greater Los Angeles area), the fifth - largest in the United States, and the 41st - largest urban area in the world with 8.75 million people. The Bay Area's population is ethnically diverse: for example, roughly half of the region's residents are Hispanic, Asian, African American, or Pacific Islander, all of whom have a significant presence throughout the region.
Document 14: One Hundred and One Dalmatians: Later, Perdita gives birth to a litter of fifteen puppies. That same night, they are visited by Cruella De Vil, a wealthy former schoolmate of Anita's. She offers to buy the entire litter, but Roger says they are not for sale. A few weeks later, she hires her henchmen, Jasper and Horace, to steal them. When Scotland Yard is unable to find them, Pongo and Perdita use the ``Twilight bark '', a canine gossip line, to ask for help from the other dogs in London.
Document 15: Pit Bulls & Parolees: As the rules regarding kennel permits were becoming increasingly strict and expensive in Los Angeles County, the rescue announced on November 13, 2011, that they would be moving the facility out of California in order to survive financially. After considering various locations, it was the memories of VRC's rescue efforts during Hurricane Katrina that led the non-profit group to choose Louisiana for their new home. It took almost a year to make the entire move complete; on January 1, 2012, Tia Torres arrived with the last group of dogs, making the state of Louisiana their one and only permanent location. The new rescue and adoption facility is located in the Upper 9th Ward of New Orleans, Louisiana, with various other ``satellite ''locations scattered throughout the South Louisiana area.
ground_truth: 12 million
sub_queries: On The Border >> cast member Answer: Rin Tin Tin
Where did Rin Tin Tin live when he died? Answer: Los Angeles
How many inhabitants does the Los Angeles area contain? Answer: 12 million