Detailed Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Problem:Dr. Louis Chen received the maximum prison sentence Friday for the knife slayings of his partner and their 2-year-old son five years ago. His attorneys had argued Chen suffered from mental illness worsened by an adverse reaction to medications, including a drug in cough syrup. 
  
 Was Dr. Louis Chen psychotic or simply enraged when he killed his long-term partner and their toddler son in a Seattle penthouse five years ago? 
  
 That’s what King County Superior Court Judge Bill Bowman — who sentenced Chen to 49 years in prison Friday — had to decide after listening to a week’s worth of testimony from psychiatric experts about the state of Chen’s mind when he killed 29-year-old Eric Cooper and their son, 2-year-old Cooper Chen, in a Seattle penthouse in August 2011. 
  
 Senior Deputy Prosecutor Don Raz argued Thursday that Chen’s crimes were among the “the worst of the worst” atrocities. 
  
 But, he said, they were fueled not by mental illness but simply rage and fear over the couple’s impending breakup and the possibility of a child-custody battle. 
  
 Raz argued that Chen, 43, deserved 49 years, the longest possible sentence within state guidelines. 
  
 He said the argument proffered by the defense, that Chen’s ability to know right from wrong was diminished by mental illness and an adverse reaction to medications, was not “substantially compelling in light of what happened to Eric and Cooper.” 
  
 He said Eric Cooper was stabbed more than 177 times and Cooper Chen’s throat was slashed from ear to ear. Worse, the toddler did not die immediately, but ran down the hall from the bedroom to the living room where he sought help from Eric Cooper, only to find his primary caretaker dead. 
  
 “We believe it is a reasonable sentence for the taking of two lives in the most horrific way possible,” Raz said. 
  
 Chen’s attorneys, however, said the physician suffered from longstanding mental illness that culminated in a psychotic break inflamed by self-medication and a buildup of a drug found in cough syrup. 
  
 Experts for the defense testified during the sentencing phase that Chen’s depression and paranoia were exacerbated by a buildup of dextromethorphan, which they said can, in large amounts, contribute to psychosis. 
  
 Chen’s defense lawyers advocated for the minimum mandatory sentence of 24 years. 
  
 They said Chen was considered gentle, kind and thoughtful by colleagues and had a history of hard work, dedication and good deeds until he began to deteriorate mentally. 
  
 “He was psychotic to the point that it interfered with his ability to know right from wrong,” said defense attorney Todd Maybrown. 
  
 Chen, an immigrant from Taiwan, was attending the University of Chicago Pritzker School of Medicine when he met Cooper, who was then a 17-year-old high-school senior in Tinley Park, Ill., friends and relatives of the couple have said. 
  
 Cooper left home and followed Chen to California, Washington and Minnesota, where they acted on their dream of having a child. 
  
 Cooper Chen was conceived with Chen’s sperm and the egg of a Taiwanese woman, which was implanted in the womb of an Oregon woman, friends of the couple said. 
  
 The family then moved to North Carolina, where Chen completed a two-year fellowship in endocrinology at Duke University. In 2011, he accepted a position at Virginia Mason Medical Center and the trio moved to Seattle. 
  
 When Chen didn’t return calls from his sister and failed to show up for his first day of work on Aug. 11, 2011, the manager of the family’s apartment was contacted by both Chen’s sister and a hospital manager. 
  
 The hospital employee went to the apartment, and Chen opened the door naked and covered in dried blood. 
  
 When police arrived, an officer asked Chen, “Who did this?” and Chen responded, “I did,” according to records. 
  
 Investigators learned that Chen and Cooper were in the midst of a breakup and that Chen believed he’d been duped by Cooper. 
  
 Inside Chen’s apartment, homicide detectives found a variety of medications, along with prescriptions and blood-soaked notes written by Chen, which they say provided evidence of a possible dual motive: that Chen feared Cooper would report his prescription-drug abuse and the abuse of his prescribing powers as a doctor, or use that information against Chen in a future child-custody dispute. 
  
 Chen was originally charged with two counts of aggravated first-degree murder, crimes that are punishable by the death penalty or life in prison with parole. Prosecutors, however, elected not to seek capital punishment, and in February of this year Chen pleaded guilty to first-degree murder for the slaying of the toddler and second-degree murder in the death of Eric Cooper. 
  
 On Thursday, the judge heard from Eric Cooper’s mother, Dawn Miller, and a friend, who spoke to the court by Skype. Both shared memories of Eric and talked about his friendly, compassionate and upbeat nature. 
  
 Miller said Chen had given her family a life sentence of horror and grief, and urged the judge to issue him the maximum sentence. 
  
 “I truly believe in my heart that he has earned it and I ask you, Judge Bowman, to show him the same amount of mercy he showed Eric and Cooper, and we all know how much that was,” she said. “None.” 
  
 Toward the end of the hearing on Thursday, Louis Chen spoke. 
  
 In a quiet voice, he said there was little he could say “that could make things better.” 
  
 He talked about the joyful years he and his family shared and said he mourns his dead son every day. 
  
 “The tear I caused in our universe is profound,” he said. ||||| SEATTLE – A Seattle physician who murdered his partner and their two-and-a-half-year-old son has been sentenced to 49 years in prison. 
  
 The murders of Eric Cooper and his son, Cooper Chen, happened five years ago at their First Hill penthouse apartment in Seattle. 
  
 In February, Cooper’s partner, Dr. Louis Chen, 43, entered a guilty plea to charges of first- and second-degree murder, for brutally stabbing his partner and slashing their son’s throat in August 2011. 
  
 Chen pled guilty to first-degree murder, which is premeditated, for the death of his toddler, Cooper, He pled guilty to second-degree murder, considered intentional, for Eric Cooper’s death. 
  
 Several experts are expected to testify about Chen’s mental state. 
  
 Chen’s sentence could have ranged from 34 to 49 years in prison. He was given the maximum sentence. 
  
 Chen avoided the possibility of a life sentence when reached a plea agreement with prosecutors in February. 
  
 Prosecutors originally charged Chen with two counts of aggravated first-degree murder. Prosecutor Dan Satterberg decided not to seek the death penalty. That left the only possible punishment life in prison with no early release, if he had been convicted as charged. 
  
 In 2011, Dr. Chen, an endocrinologist, moved to Seattle with his family from North Carolina for a job at Virginia Mason. When he didn’t show up for his first day of work, a hospital manager went to Chen’s apartment, according to court records. 
  
 Investigators say Chen was naked and covered in dried blood. Inside, police found the bodies of Eric Cooper, who had been stabbed more than 100 times, and their son, whose neck had been repeatedly cut. |||||
Solution:
Dr. Louis Chen, convicted of fatally stabbing his lover 177 times before slashing their toddler son's throat from ear to ear in a gruesome 2011 double homicide he blamed on a buildup of the active ingredient in cough syrup, will spend 49 years in prison for his crime. "Show him the same amount of mercy he showed Eric and Cooper, and we all know how much that was—none," Dawn Miller, mother of Eric Cooper and grandmother to 2-year-old Cooper Chen, told the court. Chen, who said the cough medicine caused depression, paranoia, and a psychotic break, received the maximum sentence allowed in the state of Washington, reports the Seattle Times. "We believe it is a reasonable sentence for the taking of two lives in the most horrific way possible," the senior deputy prosecutor says. Chen, an immigrant from Taiwan, met Cooper 12 years earlier, when he was in his late 20s and Cooper was a 17-year-old senior in high school. They had their son using Chen's sperm, a Taiwanese woman's egg, and a surrogate friend. They'd just moved to Seattle from North Carolina after Chen accepted a job at Virginia Mason Medical Center. When Chen failed to show up on his first day of work on Aug. 11, a hospital manager found him in his penthouse, naked and covered in dried blood; "I did," he responded when asked who committed the murders. Despite his admission, the prosecutor decided not to seek the death penalty, reports Q13 Fox. Prosecutors argued it was not psychosis that drove Chen, but rage and fear over a pending breakup and custody battle. (Chen spent a week in the hospital for self-inflicted stab wounds.)