(CNN) -- In a show of adoration, a small group of Jenni Rivera's fans waited outside Long Beach Airport, as the plane carrying the music star's remains landed late Thursday. They greeted members of her family with applause and condolences as they exited the airport. 
 
 Another group of fans gathered at an impromptu altar in front of Rivera's mother's home in Lakewood. 
 
 A hearse ferried Rivera's body through dark streets, escorted by at least three police cruisers, to All Souls Mortuary, according to CNN affiliate KCAL. 
 
 The singer was killed Sunday when the plane she was aboard plummeted from 28,000 feet, Mexico's transportation secretary said. The private jet crashed in a mountainous area 9,000 feet above sea level. 
 
 The remains of Rivera's publicist and the plane's co-pilot have also been identified, said Jorge Domene, a spokesman for Mexico's Nuevo Leon state. 
 
 The cause of the crash is under investigation. 
 
 Two lawsuits against the company that owns the jet accuse the firm of lying about its links to a businessman convicted of falsifying maintenance records. 
 
 Rivera had left a letter for her loved ones and gave instructions to her sister Rosie regarding the circumstances under which it should be read, her brother Pedro Jr. told CNN en Español on Wednesday. 
 
 He said the letter stipulated that she did not want to be cremated, as the family had originally planned to do, and that the authorities should hand over her remains to her siblings. 
 
 "Jenni always had advisers who helped her to work and to make things right," he said. "She prepared a letter about a month, month and a half ago." 
 
 He added that funeral plans had not been finalized but that a memorial would probably be held in Mexico. 
 
 The accident report will not be ready for nine months to a year, the secretary of communications and transportation said. 
 
 Rivera, 43, is mourned by millions of fans. 
 
 She and six others were thought to be aboard the plane, which lost contact with air traffic controllers soon after takeoff. 
 
 Known as "La Diva de la Banda" or the Diva of Banda Music, Rivera was a musical powerhouse with her Spanish-language performances of regional Mexican corridos, or ballads. For fans, the nickname captured her powerful voice and personal strength. 
 
 In recent years, she had been working to break into the English-language U.S. market and was reportedly on the verge of a crossover with a sitcom inspired by the success of "I Love Jenni," a Spanish-language reality TV show on Telemundo's mun2 network. 
 
 Rivera sold 15 million records, according to Billboard, and had recently won two Billboard Music Awards, including favorite Mexican music female artist. 
 
 In October, People en Español added her to its list of the 25 most powerful women. 
 
 CNN's Nelson Quinones contributed to this report 

 Mexico's music world mourned Jenni Rivera, the U.S.-born singer presumed killed in a plane crash whose soulful voice and openness about her personal troubles had made her a Mexican-American superstar. 
 
 Jenni Rivera could have avoided death. 
 
 "La Diva de la Banda" made last-minute changes to her itinerary the day her plane crashed, killing her and six other onboard, according to a report from Mexican website Conexion Total. 
 
 The concert promoter who hired Rivera to have her concert in Monterrey, Mexico last week said he had offered her to stay in Monterrey that evening. 
 
 The National Transportation Safety Board, which is investigating the crash, confirmed Rivera’s death on Monday. They say Mexican authorities told them Rivera died in Sunday’s plane crash in northern Mexico. Recent reports say her remains were found and were taken to a forensic facility in Mexico 
 
 Jesús Arreola says Rivera decided last minute to fly out in the wee hours to Toluca. 
 
 “We spoke to her (Jenni Rivera) and her representative (Mario Macías) at 2:30am,” said Arreola. 
 
 “During that call was when they informed us that she had changed her plans and that they would be flying out right away to Toluca.” 
 
 Arreola said Rivera insisted on leaving Monterrey because she had an appearance on “La Voz Mexico 2,” a singing competition taking place in Mexico City, despite the lodging arrangements that had been made for her and her team. 
 
 “We had four tables in the VIP area and we had her disguise ready for her so no one would recognize her,” said Arreola. “We also had reserved a hotel for her.” 
 
 Arreola said that Rivera was so excited to perform in Monterrey again that during the sound check she had her team inform him that she wanted to return during the last week in February. 
 
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– Fox News Latino declares that "Jenni Rivera could have avoided death," in a report on a last-minute itinerary change the singer made. Though the promoter behind the concert she gave in Monterrey on Saturday offered to put her up in a hotel for the night, she made a last-minute decision to take off. He explains that in a call with Jenni and her rep at 2:30am, "they informed us that she had changed her plans and that they would be flying out right away to Toluca." (Her plane went missing around 3:30am.) She said she needed to leave in order to appear at a singing competition in Mexico City. Two other equally gloomy updates: Rivera's family has finally been forced to give up hope that the singer was somehow, somehow still alive. Her remains have been IDed and turned over to the family, who have selected what CNN describes as an "ornate red urn" as her final resting place. Two Mexican police officers have been arrested on suspicion of stealing items from the crash site, reports the AP. One of the officers had photos of the scene on his phone, which police discovered as part of their investigation into how the press was able to obtain grisly photos of the closed site.