Answer the question at the end by quoting:

Whitney Elizabeth Houston (August 9, 1963 - February 11, 2012) was an American singer, actress, producer, and model. In 2009, Guinness World Records cited her as the most awarded female act of all time. Houston is one of the best-selling music artists of all-time, with 200 million records sold worldwide. She released seven studio albums and two soundtrack albums, all of which have diamond, multi-platinum, platinum, or gold certification.
The Clive Davis's pre-Grammy party that Houston was expected to attend, which featured many of the biggest names in music and movies, went on as scheduled although it was quickly turned into a tribute to Houston. Davis spoke about Houston's death at the evening's start:  By now you have all learned of the unspeakably tragic news of our beloved Whitney's passing. I don't have to mask my emotion in front of a room full of so many dear friends. I am personally devastated by the loss of someone who has meant so much to me for so many years. Whitney was so full of life. She was so looking forward to tonight even though she wasn't scheduled to perform. Whitney was a beautiful person and a talent beyond compare. She graced this stage with her regal presence and gave so many memorable performances here over the years. Simply put, Whitney would have wanted the music to go on and her family asked that we carry on.  Tony Bennett spoke of Houston's death before performing at Davis's party. He said, "First, it was Michael Jackson, then Amy Winehouse, now, the magnificent Whitney Houston." Bennett sang "How Do You Keep the Music Playing?" and said of Houston, "When I first heard her, I called Clive Davis and said, 'You finally found the greatest singer I've ever heard in my life.'"  Some celebrities opposed Davis' decision to continue on the party while a police investigation was being conducted in Houston's hotel room and her body was still in the building. Chaka Khan, in an interview with CNN's Piers Morgan on February 13, 2012, shared that she felt the party should have been canceled, saying: "I thought that was complete insanity. And knowing Whitney I don't believe that she would have said 'the show must go on.' She's the kind of woman that would've said 'Stop everything! Un-unh. I'm not going to be there.' [...] I don't know what could motivate a person to have a party in a building where the person whose life he had influenced so enormously and whose life had been affected by hers. They were like... I don't understand how that party went on." Sharon Osbourne condemned the Davis party, declaring: "I think it was disgraceful that the party went on. I don't want to be in a hotel room when there's someone you admire who's tragically lost their life four floors up. I'm not interested in being in that environment and I think when you grieve someone, you do it privately, you do it with people who understand you. I thought it was so wrong."

why?

while a police investigation was being conducted in Houston's hotel room and her body was still in the building.



Answer the question at the end by quoting:

Olivia Dunham is a fictional character and the main protagonist from the science fiction television series Fringe, which aired on the Fox Broadcasting Company in the United States from 2008 to 2013. The character was created by series' co-creator J. J. Abrams, and is portrayed by actress Anna Torv. Olivia is the series' protagonist, and was introduced as an FBI Special Agent, working for a multi-agency task force of the U.S. Department of Homeland Security called the Fringe Division, dealing with supernatural events that are linked to experimental occurrences. Having grown up with an abusive stepfather, Olivia struggles with the unexpected changes in her life, following her encounter with mentally unstable scientist Walter Bishop, and his son and an eventual love interest for her, Peter Bishop.
The character of Olivia has been described as "an incredibly driven, incredibly brilliant agent with her own complicated past that will be peel[ed] back over time." She is a loner and dedicates almost all of her time to her work. She has a strong sense of justice, which drives her to solve a case by any means necessary. It is this quality which both impresses and irritates Broyles, as it makes her a good agent but also makes her prone to biting off more than she can chew when it comes to pursuing suspects. Olivia had an abusive stepfather, and shot him several times in defense of her mother and herself. She was unable to finish him off, and so he recovered and disappeared, leaving her to blame herself for not exacting retribution against him, contributing to her determination to bring criminals to justice. She was nine years old when she shot her stepfather, and she states in an earlier episode that she knew what she wanted to do for a career "pretty much since [she] was nine", indicating a direct link between the childhood abuse and her job.  In the reset timeline for the series' fourth season, Torv explained that "The Olivia we meet and know has known about Fringe Division and had all this time to get used to it and work out that this is her life," rather than becoming familiar with it after the attack on John Scott. Consequently, "when Lincoln comes in, she's a little more open to him [than she was with Peter] and working with someone again."  Olivia has few close relationships. She has little family, as her mother died when she was in her early teenage years. Olivia's is close to her sister Rachel, and Rachel's daughter Ella. Olivia was involved in a serious relationship with fellow FBI agent John Scott, and his supposed betrayal and death was something she dealt with for much of the first season. In the second season finale, Olivia and Peter Bishop finally admit their feelings for each other and kiss. Fauxlivia was involved in a serious relationship with Frank Stanton and eventually became engaged, but the two broke up when he discovered she was pregnant by Peter. Olivia was in a relationship with Peter after they mended things in episode 6B But shortly after that Peter built a bridge wiping himself from existence, causing Olivia to forget who he was. But through the cortexiphan and the power of their love, she soon remembered her life with him. They were married and have a daughter. In episodes 4.19 Letters of Transit and 5.1 Transilience Thought Unifier Model-11, their daughter finds them and reunites them.

Does she have any siblings?
Olivia's is close to her sister Rachel, and Rachel's daughter Ella.