Definition: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: Several relatives of convicted Boston Marathon bomber Dzhokhar Tsarnaev, who has family in southern Russia, arrived in Boston Thursday, according to a person familiar with the case. 
  
 They are arriving as Tsarnaev’s lawyers prepare to put on their case starting Monday in the sentencing phase of the bombing trial. 
  
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 It was unclear which members of Tsarnaev’s family are now in town, and whether any of them will be called to testify. In addition to having family in southern Russia, Tsarnaev has two sisters in New Jersey, and an uncle in Maryland. Tsarnaev’s parents — Anzor and Zubeidat — reportedly live in Dagestan. A spokesman for the state police would not comment on whether any Tsarnaev family members arrived in Boston, but did say the mother did not come. If she had returned to the country, she could be arrested for failing to appear in court on a shoplifting charge from 2012. 
  
 Prosecutors rested their case on Thursday after calling 17 witnesses over three days, including several bombing survivors who have rarely told their story publicly. The prosecution used the sentencing phase to focus on the lives of his victims, their family’s loss, and the altered lives of those who survived. 
  
 Prosecutors have presented “aggravating factors” that they say warrant the death penalty. They say the brothers were inspired by Al Qaeda, and were equal partners in the attacks. They also say the attacks were preplanned, that Dzhokhar Tsarnaev knew that people could die, including children. 
  
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 Tsarnaev’s defense attorneys will begin making their case next week, presenting what are known as “mitigating factors,” that they hope will convince jurors to spare his life. 
  
 Already the lawyers have argued that Tsarnaev’s accomplice and older brother, Tamerlan, was the mastermind of the attacks, that he coerced an impressionable younger brother into helping him carry out the bombing. They pointed out that Tamerlan acquired the bomb parts, and argued that he was the one who shot and killed Collier. And they said it was Tamerlan who then led police into a firefight in Watertown, where he was killed. ||||| BOSTON -- The prosecution rested its case Thursday during the penalty phase of Boston Marathon bomber Dzhokhar Tsarnaev's trial after playing a video showing the mother of 8-year-old Martin Richard crouched over him and resting her head on his chest as he lay dying. 
  
 "I heard 'please' and 'Martin' being uttered by Denise Richard," said Steve Woolfenden, a man who was lying on the pavement next to Martin and his mother after the second bomb exploded. 
  
 "Just pleading with her son," Woolfenden said, as prosecutors played a video that showed Denise Richard leaning over close to her son, then putting her head down on him. 
  
 The boy bled to death on the sidewalk. 
  
 Woolfenden's left leg had been sheared off. He described frantically trying to get his 3-year-old son, Leo, out of his stroller. As he lay on the pavement, he saw Martin and Denise Richard. 
  
 Prosecutors, who rested their case Thursday, will get a chance for rebuttal after the defense presents its case, which is expected to begin Monday. 
  
 Tsarnaev was convicted this month of all 30 charges against him. Three people were killed and more than 260 others were wounded when twin bombs exploded near the finish line of the marathon April 15, 2013. 
  
 The jury that convicted the 21-year-old former college student in the bombing is now deciding whether he should get the death penalty. A recent poll showed a majority of Bostonians are against Tsarnaev paying with his life. 
  
 Also testifying Thursday was Heather Abbott, whose left leg was amputated after the bombing. She described her own painful loss, then identified photos of 16 others who lost limbs as prosecutors tried to drive home the brutality of the attack to jurors who will decide the bomber's fate. 
  
 Abbott, of Newport, Rhode Island, said she was catapulted through the entrance of a restaurant when the second bomb exploded. She said her foot felt like it was on fire, so she began crawling to follow a crowd of people trying to get away from the bomb. 
  
 Later, in the hospital, a doctor recommended amputating her left leg below the knee. Her heel had been entirely blown off, and her foot was severely damaged. 
  
 "It was probably the hardest decision I've ever had to make," she said. 
  
 Prosecutor Nadine Pellegrini asked Abbott to identify photographs of other amputees she has come to know since the bombing. The photos showed the amputees wearing prosthetic limbs, in wheelchairs and on crutches. 
  
 Another amputee, Marc Fucarile, testified Thursday from a wheelchair. 
  
 Fucarile, whose right leg was blown off in the bombing, glared at Tsarnaev as he sat about 10 feet away at a table with his lawyers. Tsarnaev did not look at him and stared straight ahead impassively. 
  
 #Tsarnaev will have to enter this court and pass within a foot or two of Fucarile. — Jim Armstrong (@JimArmstrongWBZ) April 23, 2015 
  
 It just happened. Fucarile stared intently at #Tsarnaev, who did not acknowledge. Fucarile is still staring him down. — Jim Armstrong (@JimArmstrongWBZ) April 23, 2015 
  
 Fucarile says one of the first things he remembers after the second bomb went off is lying on the ground looking up at the sky and a nurse saying, "He's still on fire." 
  
 Fucarile's right left was blown off. 
  
 Fucarile: my leg ended up in the street; I'm told I handed it to a firefighter, but I don't recall. — Jim Armstrong (@JimArmstrongWBZ) April 23, 2015 
  
 Fucarile: both my eardrums were blown apart; mostly deaf in one ear. My right leg was amputated on the scene. — Jim Armstrong (@JimArmstrongWBZ) April 23, 2015 
  
 Fucarile said he has had more than 60 surgeries. Two years after the bombing, it is still unclear whether his left leg can be saved, he said. 
  
 "It doesn't look promising," Fucarile said. ||||| Dzhokhar Tsarnaev's family arrived at Logan Airport Thursday afternoon and were taken to a Hampton Inn on Route 1 in Revere, Massachusetts, as the defense gears up for the penalty phase in the Boston Marathon bomber's trial. (Published Friday, April 24, 2015) 
  
 The family of Boston Marathon bomber Dzhokhar Tsarnaev arrived Thursday afternoon at Boston's Logan Airport, law enforcement confirms. 
  
 A law enforcement source confirms Tsarnaev's relatives are staying at the Hampton Inn in Revere just a few miles from Logan, but would not say which relatives are here. 
  
 The family members arrived at Logan Airport's Terminal E, an international flight that landed in Boston in the afternoon. They arrived in two white vans from the airport. Revere Police arrived at the hotel a short time later. 
  
 Revere's police chief says the FBI is providing security at the hotel, and that other guests should not be concerned about safety. 
  
 Family of Tsarnaev in Boston 
  
 (Published Thursday, April 23, 2015) 
  
 Revere Police add that they only learned on Thursday that Tsarnaev's family would be staying in town. Law enforcement officials say the length of that stay depends on the trial. 
  
 It appears his family members have not left the hotel throughout the evening, and federal agents remain at the hotel, keeping guard inside. 
  
 Law enforcement officials confirm his mother, Zubeidat Tsarnaeva, or Tsarni, did not make the trip. Tsarnaeva has an outstanding warrant on a shoplifting case and could have been detained at Customs. She has defended her son in the past and railed against the United States. 
  
 Tsarnaev's sister, Alina Tsarnaeva, was previously charged in Boston related to a counterfeiting case and in New York with threatening "to put a bomb" on another woman. 
  
 The arrival of his family coincides with the defense giving its opening statement in the penalty phase of Tsarnaev's trial on Monday. 
  
 Tsarnaev was convicted this month of all 30 charges against him. Three people were killed and more than 260 others were wounded when twin bombs exploded near the finish line of the marathon April 15, 2013. An MIT police officer was also killed in a shootout three days after the bombings. 
  
 The government earlier in the day rested their case in the penalty phase of the trial. The prosecution will get a chance for rebuttal after the defense presents its case. 
  
 A jury must decide whether to sentence him to life in prison or to death. |||||
Output:
The family of Dzhokhar Tsarnaev has arrived in Boston—and they may be called upon to help save his life. The defense in the penalty phase of the Boston Marathon bomber's trial begins on Monday and some of his relatives may testify, the Boston Globe reports. Tsarnaev has two sisters in New Jersey, but the family members who arrived yesterday flew in on an international flight, NECN reports. Tsarnaev's parents live in southern Russia, but a police spokesman tells the Globe that his mother, Zubeidat Tsarnaeva, was not among the relatives who arrived at Boston's Logan Airport. Tsarnaeva—who has defended her sons and says the family should never have moved to the US—has an outstanding warrant on a shoplifting charge and could have been detained if she flew to Boston. The prosecution rested its case yesterday, showing the jurors who will decide whether Tsarnaev lives or dies a video of 8-year-old Martin Richard's mother crouching over him and resting her head on his chest as he bled to death, CBS News reports. "I heard 'please' and 'Martin' being uttered by Denise Richard," testified Steve Woolfenden, who lost a leg in the bombing and was lying on the pavement next to them. "Just pleading with her son."