Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: The ex-boyfriend of an anti-domestic violence advocate and entrepreneur who was beaten to death in September was indicted Tuesday on a murder charge, according to authorities. 
  
 Nathaniel Mitchell, 35, of Lewisville, is accused of beating Donna Alexander, who died from severe head injuries on Sept. 24 in a Dallas hospital. 
  
 Mitchell also faces charges of burglary with the intent to commit assault and intent to commit aggravated assault, according to the grand jury indictment. 
  
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 Nathaniel Mitchell faces murder in connection with the beating death of Donna Alexander, who died at a Dallas hospital Sept. 18. Handout Tarrant County Jail 
  
 Mitchell was arrested Sept. 21 by Grand Prairie police and charged with aggravated assault, but that charge was upgraded to murder after Alexander died. 
  
 Alexander received local and national attention in 2008 as the creator of the Anger Room, a facility that allowed visitors to alleviate stress by smashing items in rooms made to look like a workplace or living area, according to the Tarrant County district attorney’s office. 
  
  
  
  
  
 The business was featured on an episode of “The Real Housewives of Dallas,” according to reporting from the Chicago Tribune. 
  
 Alexander hoped to expand the idea to additional cities in Texas and nationwide. 
  
 Mitchell was in custody in the Tarrant County Jail Wednesday. Bond on the murder charge was set at $250,000, according to jail records. 
  
 The case has been assigned to Criminal District Court No. 2, and will be handled by the district attorney’s Intimate Partner Violence team. 
  
 Alexander’s sister, Lauren Armour of Chicago’s Bronzeville neighborhood, called her sister’s manner of death particularly tragic, the Tribune reported. 
  
 “Donna’s thing was, instead of people hurting people, why not let it out on objects so a life isn’t lost, to keep people out of jail?” Armour told a Tribune reporter. “A therapeutic way to get the anger from inside of them and help to relieve stress.” 
  
 Mitchell had taken Alexander to the emergency room with severe injuries on Sept. 21 but “staff believed his story was inconsistent with her injuries,” the Tribune reported. 
  
 “No matter how much she tried to get away from it, he always ended up back in her life,” Armour said. “She was talented, creative, loved people and loved them hard. Despite how ugly a person might be, she loved them hard.” 
  
 Alexander grew up near the White Sox ballpark and attended Dunbar Vocational Career Academy, her sister said. 
  
 She moved to the Dallas area as a young adult, and at first tested her business model by allowing friends and family to bash household items for $5 in her garage. 
  
 In an interview with the Tribune about her business just a few weeks before her death, Alexander said her inspiration for Anger Room came from growing up in Chicago and seeing people go to jail for behaviors like punching holes in a wall. 
  
 “We’re all born with anger,” Alexander told the Tribune. “I just figured it was an alternative, a way to get rid of anger.” 
  
 Businesses similar to the Anger Room were started nationwide after Alexander pioneered the idea. 
  
 “I think it’s a primal instinct we have,” Alexander told the Tribune. “Afterward, it’s like a weight has been lifted.” 
  
  
  
  
  
 Armour said Alexander loved raising her young son and daughter, and made clothes for needy children and donated food and hygiene products to the homeless. ||||| Alexander received national attention as founder of the Anger Room, a facility in Deep Ellum that allowed visitors to alleviate stress by breaking items in rooms mocked up to look like a workplace or living area. 
  
 Businesses similar to Anger Room have launched in several states, including Florida, Illinois, Missouri and Oklahoma. 
  
 At a vigil held shortly after her death, Alexander's father, Donald Alexander of New Jersey, said that his daughter's death and Mitchell's arrest were surreal. She had spent most of her life advocating against domestic violence, he said. 
  
 "At 14, she knew what she wanted to do," he said. "She was really adamant about domestic abuse and working to do something for the community." 
  
 According to police, Alexander was attacked in her Grand Prairie home and taken to Baylor University Medical Center in Dallas on Sept. 21 with severe injuries. 
  
 Mitchell, who took Alexander to the hospital, gave staff a story they found to be inconsistent with her injuries, Grand Prairie police Officer Mark Beseda said. Officers interviewed Mitchell and arrested him at the hospital on outstanding warrants. 
  
 Mitchell remains in the Tarrant County Jail on $250,000 bail. ||||| FORT WORTH (CBSDFW.COM) – A Tarrant County Grand Jury has indicted the former boyfriend of a woman who was killed in her home as her two children hid in another room. 
  
 Nathaniel Mitchell, 34, was indicted on charges of Murder, Burglary with the Intent to Commit Aggravated Assault, and Burglary with the Intent to Commit Assault in the death of Donna Alexander. 
  
 “The children locked themselves in their rooms. They were afraid,” described Alexander’s sister, Lauren Armour. 
  
 “He broke in her bedroom window because he was beating on the door and they wouldn’t let him in,” said Armour. 
  
 Mitchell initially told Grand Prairie police that Alexander fell in the shower. Mitchell’s indictment said he hit her “with an unknown object” or “pushed her” causing her to “strike an unknown object” resulting in her death. 
  
 Alexander was an advocate for domestic violence survivors. She received local and national media attention as founder of the Anger Room, a facility that allowed visitors to alleviate stress by breaking items in rooms mocked up to look like a workplace or living area. 
  
 “Her legacy is bigger than the Anger Room. She taught people how to love unconditionally,” said Alexander’s best friend Torria Bradford. 
  
 Alexander hoped to expand her Anger room brand to additional cities in Texas and on the East Coast. 
  
 “My sister made an impact. She had a big heart. She just wanted to help everybody,” said Armour. 
  
 Mitchell was originally charged with aggravated assault, but the charge was upgraded to murder when Alexander died. 
  
 Mitchell remains in custody of the Tarrant County Jail. |||||
A:
Donna Alexander was an advocate for survivors of domestic violence, and she founded the Anger Room, a facility designed to alleviate stress by allowing people to destroy stuff safely. "At 14, she knew what she wanted to do. She was really adamant about domestic abuse and working to do something for the community," her father says, per the Dallas News. But in September, she was beaten to death. On Tuesday, her ex-boyfriend was indicted on murder charges in her killing, the Fort Worth Star-Telegram reports. Nathaniel Mitchell, 35, brought Alexander to a Dallas hospital on Sept. 21; he initially said she had fallen in the shower, CBS DFW reports. But staff didn't believe his story, and he was arrested the same day; Alexander died on Sept. 24 of severe head injuries. Alexander's sister says Mitchell banged on the door of Alexander's home, and when he was not let in, broke in through her bedroom window. Her young son and daughter "locked themselves in their rooms. They were afraid," her sister says. As they did so, police say Mitchell either hit her with an unknown object or pushed her, causing her to hit something. Alexander, whose Anger Room was featured on an episode of the Real Housewives of Dallas, had hoped to expand the business to other cities. Weeks before her death, Alexander explained that she was inspired to create the Anger Room after growing up in Chicago and seeing people go to jail after punching through walls. "We’re all born with anger," she said. "I just figured it was an alternative, a way to get rid of anger." (Elsewhere, a woman's body was found tied to an anchor. Her husband claimed suicide.)