Question: The 2014 film about a serial killer who drew smiley faces on his letters to the media premiered on what network?

Context paragraphs:
In the Wings (play): In The Wings is a comedy written by Tony Award winner Stewart F. Lane.  It was produced off-broadway at the Promenade Theater in New York city in 2005.  Because the play is set in New York city in 1977, the costumes and sets become secondary characters.  The off-broadway production included lots of bell bottoms, fringed vests and smiley faces.  The play was first presented as a staged reading at The Revelation Theater starring Shannon Doherty and directed by Mr. Lane.

Walmartopia: Walmartopia is a musical with music by Andrew Rohn and book by Catherine Capellaro.  It is an irreverent political satire of big business and eternal smiley faces, a musical tale of a single mom who speaks up to her corporate employer and finds herself and her young daughter jettisoned to a future where Wal-Mart dominates the entire world.

Smiley Faces: "Smiley Faces" is a song by Gnarls Barkley and is featured on their debut album, "St. Elsewhere".  It was released 17 July 2006 as the second single from that album in the United Kingdom (see 2006 in British music).

Luis Garavito: Luis Alfredo Garavito Cubillos, also known as "La Bestia" ("The Beast") or "Tribilín" (named after Disney character "Goofy"'s Latin American Spanish name) is a Colombian rapist and serial killer.  In 1999, he admitted to the rape, torture and murder of 147 young boys.  His victims, based on the locations of skeletons listed on maps that Garavito drew in prison, could eventually exceed 300; Garavito continues to confess to more murders.  He has been described by local media as "the world's worst serial killer".  According to the Attorney General's Office and various judicial bodies, Luis Alfredo Garavito is the "second serial killer of the world."  Likewise, the judicial body ruled that all Garavito's sentences total 1853 years and nine days in jail.

My Brother the Serial Killer: 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.

Gnarls Barkley discography: The discography of Gnarls Barkley, an American alternative hip hop duo composed of record producer Danger Mouse and soul singer Cee Lo Green, consists of two studio albums, two extended plays, seven singles and seven music videos.  The duo originally met in the late 1990s, and began to record music together in 2003 following the release of Danger Mouse's 2003 album "Ghetto Pop Life".  Their first single, "Crazy", was released in 2006; it achieved worldwide chart success, reaching number two on the US "Billboard" Hot 100 – where it was certified double platinum by the Recording Industry Association of America (RIAA) – and reaching the top ten of the Australian, New Zealand and Swiss singles charts, among others.  It also topped the UK Singles Chart, attracting considerable attention for becoming the first song ever to top the chart on digital download sales alone, following a change to the chart's eligibility rules allowing songs to chart purely on digital sales providing that it was given a physical release the following week.  The song appeared on Gnarls Barkley's debut studio album, "St. Elsewhere", which peaked at number four on the US "Billboard" 200 as well as topping the New Zealand and United Kingdom albums charts.  Three further singles – "Smiley Faces", which reached the top ten of the UK and Irish singles charts, "Who Cares? " and a cover of the Violent Femmes song "Gone Daddy Gone" – were released from "St. Elsewhere", although none of them appeared on the "Billboard" Hot 100.

Tavis Smiley: Tavis Smiley ( ; born September 13, 1964) is an American talk show host and author.  Smiley was born in Gulfport, Mississippi, and grew up in Bunker Hill, Indiana.  After attending Indiana University, he worked during the late 1980s as an aide to Tom Bradley, the mayor of Los Angeles.  Smiley became a radio commentator in 1991 and, starting in 1996, he hosted the talk show "BET Talk" (later renamed "BET Tonight") on Black Entertainment Television (BET).  After Smiley sold an exclusive interview of Sara Jane Olson to ABC News in 2001, BET declined to renew his contract that year.  Smiley then began hosting "The Tavis Smiley Show" on National Public Radio (NPR) (2002–04) and currently hosts "Tavis Smiley" on the Public Broadcasting Service (PBS) on weekdays and "The Tavis Smiley Show" on Public Radio International (PRI).  From 2010 to 2013, Smiley and Cornel West joined forces to host their own radio talk show, "Smiley & West".  They were featured together interviewing musician Bill Withers in the 2009 documentary film "Still Bill".  He is the new host of "Tavis Talks" on BlogTalkRadio's Tavis Smiley Network.

Smiley face murder theory: The Smiley face murder theory (variations include Smiley face murders, Smiley face killings, Smiley face gang, and others) is a theory advanced by two retired New York City detectives, Kevin Gannon and Anthony Duarte, that a number of young men found dead in bodies of water across several Midwestern American states over the last decade did not accidentally drown, as concluded by law enforcement agencies, but were victims of a serial killer or killers.  The term "smiley face" became connected to the alleged murders when it was made public that the police had discovered graffiti depicting a smiley face near locations where they think the killer dumped the bodies in at least a dozen of the cases.  The response of law enforcement investigators and other experts to Gannon and Duarte's theory has been largely skeptical.

Keith Hunter Jesperson: Keith Hunter Jesperson (born 6 April 1955) is a Canadian-American serial killer who murdered at least eight women in the United States during the early 1990s.  He was known as the "Happy Face Killer" because he drew smiley faces on his many letters to the media and prosecutors.  Many of his victims were sex workers and transients who had no connection to him.

Happy Face Killer (film): Happy Face Killer is a 2014 Canadian-American television film inspired by real-life events of the hunt and capture of serial killer Keith Hunter Jesperson.  The film premiered on March 1, 2014, on the Lifetime network and starred David Arquette as Jesperson.  Gloria Reuben played Melinda Gand, the lead FBI case investigator.

Supporting paragraphs: Happy Face Killer (film) Keith Hunter Jesperson
Answer: Lifetime