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: POLICE IN LONDON are appealing for information about an Irish man who died in London from serious burns after he was found on fire. 
  
 Police and emergency services were called to the scene of the fire at Williams House, Orchard Place in North London on 17 September. When they arrived, they found John Nolan, aged 70, ablaze. 
  
 The fire was quickly extinguished by London Fire Brigade (LFB) and Nolan was taken to a specialist hospital by London’s Air Ambulance. 
  
 Nolan sustained serious burns and subsequently died. 
  
 A post-mortem examination on 27 September determined that Nolan died as a result of severe burns. 
  
 The cause of the blaze was investigated by specialist LFB investigators. However, no accelerant was found. 
  
 Detectives have launched an investigation into Nolan’s death to establish the circumstances surrounding the blaze. 
  
 Police have said they are treating his death as unexplained and no arrests have been made. 
  
 ‘We don’t know what happened to him’ 
  
 John was originally from Mayo but had been living in London since 1960s. He was in poor health but was active in his area. 
  
 Speaking to TheJournal.ie in September, John’s nephew Kevin Byrne said that the family were all devastated following his death and didn’t know what happened to him. He appealed to anyone with information to come forward. 
  
 “We were just worried that a frail, elderly man was attacked on the street,” he said. 
  
 “We just don’t know what happened to him and we’d like to know. 
  
 I just want to appeal to anyone who is in the area who might have seen something to come forward… It was a terrible way to go. 
  
 Kevin described John as “a very content man” who was well-liked in his area. 
  
 “He suffered from ill-health but he was just a very content man. He would walk about with his dog and he knew everyone up and down the road. The would look out for him.” 
  
 Police in London are also appealing for information and witnesses to the fire. 
  
 The investigating officer, PC Damien Ait-Amer said: “We have spoken with a number of witnesses who saw Mr Nolan ablaze, but we have yet to establish how the fire started. 
  
 Mr Nolan was a well-liked member of the community and none of our enquiries so far have indicated that he had been involved in a dispute of any sort. 
  
 “Nor does any account given by witnesses suggest that he had been in contact with another person at the time of the fire.” 
  
 Anyone who witnessed the incident but has yet to speak with police is urged to call PC Damien Ait-Amer via 101, or tweet information to police at @MetCC. ||||| Spontaneous human combustion is a phenomenon as rare as it is puzzling. But such is the bafflement surrounding the death of a pensioner who caught fire in the street, some are now speculating that the gruesome scientific anomaly is to blame. 
  
 John Nolan, 70, died from “horrific” burns after being found ablaze near his home in North London in September. Detectives have now said that after weeks of investigation they have found no obvious cause for the fire. 
  
 Spontaneous human combustion is a fiercely debated process, characterised by near-total destruction of the body with little surrounding damage. 
  
 It has been attributed to fewer than 200 deaths in history and was famously depicted in Dickens’ Bleak House where the alcoholic Krook combusts with no apparent cause. 
  
 Mr Nolan, described as a “gentle, nice man”, had no accelerants on his body, according to police, and Fire Service investigators found no source of ignition. 
  
 Yet relatives later said he suffered burns to his internal organs. 
  
 Originally from County Mayo, the former construction worker was airlifted to Colchester hospital and died surrounded by family members after doctors withdrew life-support. 
  
 PC Damien Ait-Amer, who is investigating the death, said: “Mr Nolan was a well-liked member of the community and none of our enquiries so far have indicated that he had been involved in a dispute of any sort, nor does any account given by witnesses suggest that he had been in contact with another person at the time of the fire.” |||||
A:
A grisly mystery in London has police searching for answers. The Independent reports a 70-year-old man named John Nolan was walking near his home Sept. 17 when he burst into flames. Emergency services were called for a "man ablaze" while bystanders tried to put out the fire. The retired construction worker later died at the hospital from "horrific" burns, according to the Telegraph. His relatives say even his internal organs had burned. Despite months of investigation, officials have found no source of ignition or sign of an accelerant and have no suspects. Police say that interviews with witnesses don't indicate Nolan "had been in contact with another person at the time of the fire." The Telegraph raises the specter of spontaneous human combustion, which it says is "a fiercely debated process" with only 200 deaths ever attributed to it. Bernard Knight, a former pathologist, says it's "ridiculous" to give any credence to spontaneous human combustion. “In the course of my career I saw maybe three or four cases of so-called spontaneous combustion, but they were all indoors near an open fireplace," he says. In the case of Nolan, he says "a failure to find a cause does not mean there isn't one." Meanwhile, Nolan's family just wants answers. “We were just worried that a frail, elderly man was attacked on the street,” nephew Kevin Byrne tells the Journal. “We just don’t know what happened to him and we’d like to know."