question: The Killing Season portrayed the Long Island serial killer on which television network?
answer: A&E.
context: Title: Dexter (episode)
  Passage: "Dexter", or "Pilot", is the pilot episode of the first season television drama series "Dexter", which premiered on October 1, 2006 on Showtime in the United States.  The episode was written by developer James Manos, Jr. and directed by Michael Cuesta.  It was based on the opening of the novel "Darkly Dreaming Dexter" by Jeff Lindsay.  The pilot introduces the series' protagonist, Dexter Morgan (Michael C. Hall), a Miami Metro Police Department blood spatter analyst with a double life as a serial killer.  While solving murders in the Homicide division, Dexter also spends his time hunting and killing murderers and criminals who have escaped the justice system.  The pilot introduces the "Ice Truck Killer", a serial killer who targets prostitutes and leaves their bodies dismembered and bloodless, and the rivalry that develops between the killer and Dexter.
  Title: Derrick Todd Lee
  Passage: Derrick Todd Lee (November 5, 1968 – January 21, 2016), also known as the Baton Rouge Serial Killer, was an American serial killer.  His killing spree began in 1992 and ended in 2003, and claimed the lives of seven women.
  Title: John Bittrolff
  Passage: John Bittrolff (born July 1, 1966) is a convicted American murderer and a suspect in the Long Island Serial Killer case.  In July 2014 he was charged with the murders of Rita Tangredi and Colleen McNamee; he is also a suspect in the murder of a third woman, Sandra Costilla.  Bittrolff became a suspect in the unsolved murders after his brother Timothy Bittrolff was partially matched to DNA found on the bodies in 2013.  Timothy Bittrolff submitted the sample after violating an unrelated order of protection, in 2013.
  Title: Long Island serial killer
  Passage: Long Island serial killer (also referred to by media sources as the Gilgo Beach Killer or the Craigslist Ripper) is an unidentified suspected serial killer who is believed to have murdered 10 to 16 people associated with prostitution, over a period of nearly 20 years, and dumped their bodies along the Ocean Parkway, near the remote Long Island, New York beach towns of Gilgo Beach and Oak Beach in Suffolk County, and the area of Jones Beach State Park in Nassau County.
  Title: My Brother the Serial Killer
  Passage: My Brother the Serial Killer is a 2012 American television documentary about serial killer Glen Rogers, otherwise known as the "Casanova Killer", who was convicted for a series of murders and arsons.  The documentary was narrated by Rogers' brother Clay Rogers and aired on Investigation Discovery in November 2012.  "My Brother the Serial Killer" received widespread media attention for Clay's claims that his brother was responsible for the 1994 murders of Nicole Brown Simpson and Ronald Lyle Goldman.
  Title: The Killing Season (U.S. TV series)
  Passage: The Killing Season is an American true crime documentary television series which debuted on November 12, 2016, on A&E.  Executive produced by Alex Gibney, the series follows documentarians Joshua Zeman and Rachel Mills as they explore the case of the Long Island serial killer and other unsolved cases such as the Eastbound Strangler, and the victims and investigations that have been connected to the cases.  Some new investigating and interviewing is done during the series, including contacting internet amateur crime investigation group Websleuths.com group members, and following-up on Websleuths activities.
  Title: The Long Island Serial Killer (film)
  Passage: The Long Island Serial Killer (also known as The Gilgo Beach Murders) is a 2013 American true crime horror film loosely based on the elusive Long Island serial killer who murdered seventeen women on Long Island between 1996 and 2010.
  Title: Joel Rifkin
  Passage: Joel David Rifkin (born January 20, 1959) is an American serial killer.  In 1994, he was sentenced to 203 years in prison for the murders of nine women between 1989 and 1993.  He is believed to have killed up to 17 victims between 1989 and 1993 in New York City and in Long Island, New York.  Although Rifkin often hired sex workers in Brooklyn and Manhattan, he lived in East Meadow, a suburban town on Long Island.
  Title: Juana Barraza
  Passage: Juana Barraza (born 27 December 1957) is a Mexican former professional wrestler and serial killer dubbed "La Mataviejitas" (Sp.  "The Old Lady Killer") sentenced to 759 years in prison for killing between 42 to 48 elderly women.  The first murder attributed to "Mataviejitas" has been dated variously to the late 1990s and to a specific killing on 17 November 2003.  The authorities and the press have given various estimates as to the total number of the killer's victims, with totals ranging from 24 to 49 deaths.
citations: Long Island serial killer The Killing Season (U.S. TV series)