Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
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 A hero pilot and former lover of Britney Spears , who helped her quit booze, has been killed by the Taliban in Afghanistan. 
  
 John Sundahl, 44, was shot down flying a helicopter from the capital Kabul where he had been working for several months as a private contractor ferrying officials across the war-torn country. 
  
 His devastated brother Karl said: “It’s heartbreaking – John went there to try to repair the country. 
  
 “He was trying to help people, he would often say that the country was in chaos.” 
  
 Britney, 33, dated John in 2007 after they met at an Alcoholics Anonymous meeting in Los Angeles and she has credited him with helping her beat her drink problems. 
  
 At one stage the pair were also rumoured to be engaged, though the singer’s ­representative denied it at the time. 
  
 They remained friends after their romance ended but were said to have reignited their relationship last summer. 
  
 Yesterday a source close to Britney – who has sons Jayden James, eight, and Sean Preston, nine, with ex-husband Kevin Federline, 36 – said: “She is devastated. Britney thought he was a lovely man.” 
  
 John once told how he had warned Britney that she would die unless she stopped drinking. 
  
 He revealed in an ­interview: “I told her, ‘If you fall off the wagon I don’t think you’ll live. I told her, ‘If you don’t want to get sober for yourself, do it for your kids’. 
  
 “She truly wants to stop what she’s doing, and she has changed her life in another direction. She doesn’t get drunk every night and pass out.” 
  
 (Image: X17) 
  
 Speaking from his home in Los Angeles, his brother Karl told how John died. 
  
 He said: “John was on a journey from Kabul when he was shot at and killed. 
  
 “We were told by the State that John had died, they told us the Taliban did it. 
  
 “This is just awful. My family are heartbroken, my parents are elderly so this is very tough for them, and all of us. 
  
 “We know Britney’s upset too. 
  
 “John was still good friends with Britney, he talked to her regularly. They dated for a while but always kept in touch afterwards.” 
  
 John helped singer Britney through her darkest time as she had a public meltdown and was pictured shaving her head. 
  
 (Image: Reuters) 
  
 John’s body was repatriated to the US last week and a small family funeral was held at a Buddhist temple in LA. 
  
 Karl said: “We had a really small funeral, it was what John would have wanted. 
  
 “There were only 11 of us there, he was a Buddhist so we had it at a temple in Chinatown, Los Angeles and he has been buried at a private location.” 
  
 Britney, who is half-way through a two-year stint with her Piece of Me show at Planet Hollywood in Las Vegas, is now dating TV writer and producer Charlie Ebersol. 
  
 She split from previous lover David Lucado when she discovered he had allegedly cheated on her, which he has denied. ||||| The destructive earthquake in Nepal affected Sophia Bush personally when it was learned that her former boyfriend, 33-year-old Google executive Dan Fredinburg, was killed on Mt. Everest in an avalanche. 
  
 Upon hearing the devastating news, the 32-year-old actress shared her heartbreak with her 1.5 million Instagram followers on Saturday. "Today I find myself attempting to pick up the pieces of my heart that have broken into such tiny shards, I'll likely never find them all," Bush wrote. "Today I, and so many of my loved ones, lost an incredible friend. Dan Fredinburg was one-of-a-kind. Fearless. Funny." 
  
 The Chicago P.D. star dated Fredinburg from 2013 to 2014, and refers to him in her post as "one of the great loves of my life." 
  
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 "He was one of my truest friends," she continued in the same message. "I'm devastated and simultaneously so deeply grateful to have known and loved him, and to have counted him as one of my tribe." 
  
 Bush-- who attended the White House Correspondents' Dinner on Saturday -- then encouraged her followers to not take their loved ones for granted. "Please tell those you love that you do. Right now. This very minute," she wrote. "And please send a kiss to the sky for my friend Dan. His energy is so big and so bright, and it's all around us, so put some love toward him today. And then hug your loved ones again." 
  
 Bush isn't the only person to have lost someone in the Nepal earthquake. The death toll has exceeded 2,500 and the actress is asking people to donate to Fredinburg's Crowdrise fundraising site in an effort to help those affected by the natural disaster. 
  
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 "Our friend Dan Fredinburg was climbing Everest on behalf of OrphanGift in support of two Nepali orphanages when the earthquake struck," the site reads. "Please donate to honor his memory and carry on his mission. All funds will help OrphanGift provide urgent aid for the children effected by the disaster and restoring structural damage." 
  
 As of Monday morning, $27,118 had been raised in Fredinburg's memory. |||||
Solution:
A man Britney Spears dated during her darkest days has been fatally shot down by the Taliban in Afghanistan, the Mirror reports. Spears met John Sundahl at an Alcoholics Anonymous meeting in 2007, and he was credited with helping her overcome her drinking problems—he was in her life during her infamous head-shaving incident. He once said in an interview that he encouraged Spears to get sober for her kids. The two were even rumored to be engaged at one point, and there was another rumor that they had reconnected last summer—they stayed friends after their relationship ended. Sundahl, 44, was in Afghanistan as a private contractor, "ferrying officials across" the country, the Mirror explains. He was flying a helicopter from Kabul when he was shot down. "John went there to try to repair the country," his brother says. "He was trying to help people, he would often say that the country was in chaos." Sundahl's body was brought to the US last week for a funeral and burial. As for Spears, "she is devastated," says an insider. "Britney thought he was a lovely man." As Sundahl's brother explains, "John was still good friends with Britney, he talked to her regularly. They dated for a while but always kept in touch afterwards. ... We know Britney's upset, too." (Another celebrity lost her ex-boyfriend under tragic circumstances.)