Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

The story was chilling and heartbreaking: A 3-year-old boy was found dead in a Southern Maryland park, his mother pushing him on the swing. 
  
 More than a month after Ji’Aire Donnell Lee’s death, the Charles County Sheriff’s Office revealed more terrible details: Ji’Aire was alive when his mother put him on the swing. He stayed on it for almost two days. 
  
 A medical examiner’s office has ruled that Ji’Aire’s death was a homicide, and the sheriff’s office said Tuesday that he died of hypothermia and dehydration during his long time on the swing. The autopsy report will be sent to the county state’s attorney’s office, which will decide whether to file charges against Ji’Aire’s mother, Romechia Simms. 
  
 Kristen Ayers, of the state’s attorney’s office, said that because prosecutors had not received the autopsy report, they cannot say whether they will file charges. 
  
 Ji’Aire was dead when police found his mother pushing him in Wills Memorial Park the morning of May 22. At the time, police were unsure when and how he died. 
  
 An autopsy report has revealed that 3-year-old Ji’Aire Donnell Lee, who was found dead on a park swing as his mother pushed in May, died due to hypothermia and dehydration after spending two nights in the Maryland park. (WUSA9) 
  
 On Tuesday, the sheriff’s office said its investigation revealed that Simms, 24, arrived at the park in La Plata with her son about 11:15 a.m. May 20. 
  
 Simms, who had previously experienced a mental breakdown, stayed in the park for nearly 44 hours, pushing Ji’Aire on the swing. Early on the morning of May 22, someone who had spotted the pair at the park the day before called police to say that it was unusual that they were still there. 
  
 At 6:55 a.m., after a night during which the temperature fell to 51 degrees, police found the dead child and his mother in the park. 
  
 [She’d recovered from a breakdown, she said. Then her son was found dead.] 
  
 The police account differs from the timeline previously offered to The Washington Post by Simms’s mother, Vontasha Simms, who was living with her daughter and grandson at a motel in La Plata, Md. 
  
 Vontasha Simms said that Ji’Aire, a chubby-cheeked preschooler nicknamed “Sumo,” had gone to the Dollar Store and Burger King with his mother May 21 before leaving for the park that evening. When they didn’t return, Vontasha Simms said she grew worried and at 12:30 a.m. May 22 called her daughter. Romechia Simms assured her mother that they were on their way home. 
  
 Diane Richardson, a spokeswoman for the sheriff’s office, said that Vontasha Simms’s account was incorrect and that the mother and son spent two nights in the park. “It’s definitely Wednesday — that we know for a fact,” Richardson said. “There were witnesses there. There’s no indication that she left.” 
  
 Pallbearers carry the casket of 3-year-old Ji'Aire Lee at Resurrection Cemetery in Clinton, Md., on June 5. (J. Lawler Duggan/For The Washington Post) 
  
 In an interview Tuesday night, Vontasha Simms declined to discuss the discrepancy, saying only that Romechia Simms has been suffering so much from mental illness that “she doesn’t realize herself that she was there for that long of a time.” 
  
 Vontasha Simms said that when she and Romechia Simms were told that authorities ruled Ji’Aire’s death a homicide, they were devastated. 
  
 “We’re all upset by it, because that’s not what we’re about. It doesn’t shine a good light,” Vontasha Simms said. “We know she was in a terrible situation, and I know she didn’t do anything purposefully to harm him. But I am not going to contradict anything [investigators] are saying. I don’t want to muddy the waters.” 
  
 The family has not hired an attorney but is “looking into it,” Vontasha Simms said. “Right now, we’re waiting to see what happens. It’s just a tough pill to swallow. I don’t know what [the prosecutors] are going to do, but our main concern is keeping [Romechia Simms] emotionally stable. She’s at a fragile point. She goes a few times a week to a mental health facility.” 
  
 Last month, Vontasha Simms said that her daughter suffers from depression and bipolar disorder. Romechia Simms was hospitalized after her son was found dead but released in time for his funeral. 
  
 [Mother wipes away tears at funeral for boy found dead on park swing] 
  
 Romechia Simms had been hospitalized twice before her son’s death for erratic behavior. In an interview last month, Ji’Aire’s father, James “Donnell” Lee, said she thought someone was trying to kill him in February. Not long after that, she jumped out of a moving cab with their son in tow. 
  
 Lee, who could not be reached to comment Tuesday, said he found his ex-girlfriend and child on the side of Branch Avenue after midnight. “He was walking with no socks, jacket open, in his pajamas. She left her diaper bag two blocks away,” Lee said. 
  
 [Was the custody decision before Ji’Aire’s death a case of dad discrimination?] 
  
 Just weeks before Ji’Aire was found dead, Lee, 29, petitioned for custody of him in D.C. Superior Court, writing that he was “concerned for my child’s safety and well being.” In her written response, Romechia Simms acknowledged that she had had a breakdown but said that she had recovered. “I am now in a much better productive space,” she wrote in April, adding, “I have done everything in my power since moving from D.C. to ensure that my son has the best life that he can have.” 
  
 On May 11, Lee and the boy’s mother appeared before D.C. Superior Court Judge Peter A. Krauthamer. 
  
 According to a transcript of the hearing, Lee did not reiterate his fears about his son’s safety. The judge asked, “So is there a reason why you two shouldn’t share this child? Is someone unfit here?” Lee responded, “There’s no one unfit.” 
  
 Simms received custody on weekdays and Lee on weekends. Eleven days later, Ji’Aire was dead. 
  
 Petula Dvorak contributed to this report. ||||| A mother placed her living toddler in a swing at a Maryland park one morning and he remained there until he was found dead of cold and thirst two days later when someone spotted the mother pushing her lifeless child in the swing, authorities said Tuesday. 
  
 The 3-year-old boy found in a La Plata park died of dehydration and hypothermia, or low body temperature, said Diane Richardson, spokeswoman for the Charles County Sheriff's Office. The Office of the Chief Medical Examiner in Baltimore ruled his death a homicide last week. 
  
 Bruce Goldfarb, spokesman for the medical examiner, said Tuesday that he couldn't talk about the case. 
  
 The boy and his 24-year-old mother arrived at Wills Memorial Park the morning of May 20, Richardson said. The mother put the boy, who was alive, into the swing, where he stayed until he and his mother were found the morning of May 22. 
  
 One side of the park is bordered by woods in La Plata, a town about 30 miles southeast of Washington, with a population of about 8,700, according to the town's website. The park is in view of a few houses. 
  
 Family: Mother of dead boy on swing had 'mental illness' The grandmother of a dead boy who was found on a playground swing last year says her daughter suffered from mental illness. (Reuters) The grandmother of a dead boy who was found on a playground swing last year says her daughter suffered from mental illness. (Reuters) See more videos 
  
 Sheriff's deputies went to the park about 7 a.m. on May 22 after being called to check on the welfare of the woman and child, Richardson said. The officers went to remove the boy from the swing and give him first aid, but "it was instantaneously clear the child was dead," she said. There were no signs of trauma to his body. 
  
 May 21 was cold for late May, Richardson said, "rather chilly and it drizzled all night." According to the National Weather Service, the temperature at Dulles Airport outside of Washington ranged from 58 to 50 degrees on May 21. The low temperature was three degrees below normal. 
  
 The mother was taken to a hospital after she and the boy were found. Authorities have not released her name. 
  
 A woman who identified herself as the child's maternal grandmother told a TV station her daughter had been diagnosed with a mental illness a few months ago and had been seeking help. She didn't give specifics. 
  
 The Charles County State's Attorney's Office will review all the information deputies have gathered during the investigation and "will make a decision in terms of charges." |||||

A disturbing development in a case that was horrifying to start with: Police in Maryland say the 3-year-old boy found dead in a park swing as his mother pushed him was alive when she put him in the swing—but that had been almost two days earlier. The Charles County Sheriff's Office says Ji'Aire Donnell Lee died of thirst and hypothermia at some point during the 44 hours that his mother, 24-year-old Romechia Simms, was in the park pushing the boy on the swing, reports the Washington Post. Police say that when they arrived after a call from a worried citizen, "it was instantaneously clear the child was dead." The boy was found dead on the morning of May 22, following a night when it was "rather chilly and it drizzled all night," a police spokeswoman tells the Baltimore Sun. The death has been ruled a homicide, but authorities say they haven't made a decision on filing charges yet, the Sun reports. Simms' mother says she was diagnosed with mental illness a few months ago. Simms was hospitalized after she was found in the park but released in time for her son's funeral, reports the New York Daily News. Ji'Aire's father sought custody weeks before the death, saying he was worried about his son's safety, the Post reports. The boy was dead just 11 days after a judge decided his parents should share custody.