Question: Which serial killer, born in 1958, was responsible for at least 23 murders from 1979-1981 in Atlanta, dubbed the Atlanta Child Murders?

Context paragraphs:
Gary Ridgway: Gary Leon Ridgway (born February 18, 1949) is an American serial killer known as the Green River Killer.  He was initially convicted of 48 separate murders and is presumed to be responsible for more than 90.  As part of his plea bargain, an additional conviction was added, bringing the total number of convictions to 49, making him the most prolific American serial killer in history according to confirmed murders.  He murdered numerous women and girls in Washington State during the 1980s and 1990s.

Texarkana Moonlight Murders: The Texarkana Moonlight Murders, a term coined by the news media, references the unsolved murders committed in and around Texarkana in the spring of 1946 by an unidentified serial killer known as the "Phantom Killer", or "Phantom Slayer".  The killer is credited with attacking eight people within ten weeks, five of whom were killed.  The attacks happened on weekends between February 22, 1946 and May 3, 1946.  The first two victims, Jimmy Hollis and Mary Larey, survived.  Some police officers are not sure if their attack was connected with the murders.  The first double murder, which involved Richard Griffin and Polly Ann Moore, happened four weeks later.  The second double-homicide, involving Paul Martin and Betty Jo Booker, occurred exactly three weeks from the first murders.  The Texas Rangers came in to investigate, including the famous M. T. "Lone Wolf" Gonzaullas.  Finally, almost exactly three weeks later, Virgil Starks was killed and his wife, Katie, was severely wounded.  Most officials no longer connect that attack to the other murders.  Contrary to popular belief, the killer did not attack during a full moon, but did strike late at night.

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.

The Evidence of Things Not Seen: The Evidence of Things Not Seen is a 1985 nonfiction book by James Baldwin about the Wayne Williams Atlanta child murders of 1979-1981.  The title is a reference to the definition of faith from the Biblical Letter to the Hebrews 11:1.

Wayne Williams: Wayne Bertram Williams (born May 27, 1958) is an American serial killer who was tried, convicted, and sentenced to life imprisonment in 1982 for killing two adult men.  After his conviction, the Atlanta Police Department announced that Williams was responsible for at least twenty-three of the twenty-nine Atlanta murders of 1979–1981, also called the "Atlanta Child Murders".  Williams continues to maintain his innocence.

Who Killed Atlanta's Children?: Who Killed Atlanta's Children?  (also known as Echo of Murder and Unanswered Questions) is a TV movie about the Atlanta child murders starring James Belushi and Gregory Hines.  It was directed by Charles Robert Carner and first aired on Showtime on July 16, 2000.  This movie projects a conspiracy theory about the murders: that they were committed by the Ku Klux Klan, who then framed Wayne Williams.

Calvin Levels: Calvin Levels (born September 30, 1954 in Cleveland, Ohio) is an American film actor.  In 1984, he won a Theatre World Award and was nominated for both the Tony Award for Best Performance by a Leading Actor in a Play and the Drama Desk Award for Outstanding Featured Actor in a Play for his portrayal of Calvin Jefferson in "Open Admissions".  Levels is known for his roles in the films "Adventures in Babysitting" (1987), "Hellbound" (1994) and "The Atlanta Child Murders" (1985).

Bankhead Courts: Bankhead Courts was a public housing complex located in northwest Atlanta, Georgia.  Bankhead Courts was the location of the infamous Atlanta child murders of the 1970s.  Bankhead Courts was demolished in 2011, with the ultimate plan of redevelopment into a mixed-income community, although as of 2015 development has not yet occurred.

The Atlanta Child Murders (miniseries): The Atlanta Child Murders is a TV miniseries that aired on February 10 and 12, 1985 on CBS.  Inspired by true events, the miniseries examines the so-called "Atlanta child murders" of the late 1970s and early 1980s.

Atlanta murders of 1979–81: The Atlanta murders of 1979–1981, sometimes called the Atlanta Child Murders (although several of the purported victims were adults), were a series of murders committed in the American city of Atlanta, Georgia, from the middle of 1979 until May 1981.  Over the two-year period, at least 28 African-American children, adolescents and adults were killed.  Wayne Williams, an Atlanta native who was 23 years old at the time of the last murder, was arrested for and convicted of two of the adult murders, and sentenced to two consecutive life terms.  Police subsequently have attributed a number of the child murders to Williams and closed the cases, although he has not been tried or convicted in any of those cases.

Supporting paragraphs: Atlanta murders of 1979–81 Wayne Williams
Answer: Wayne Williams