Question: Who was found guilty of killing 22 villagers and originally given a life sentence but was released after a ruling by federal judge found their trial has been prejudiced by pre-trail publicity?

Context paragraphs:
David Bieber: David Francis Bieber (born 3 February 1966) also known under the alias Nathan Wayne Coleman is an American convicted murderer.  A fugitive from the United States, he murdered PC Ian Broadhurst and attempted to murder PCs Neil Roper and James Banks on 26 December 2003 in Leeds, England, sparking a nationwide search before he was captured.  He was given a whole life sentence after being found guilty of murder in December 2004 and the trial judge recommended that he should never be released, however, in 2008 this sentence was controversially reduced to a minimum term of 37 years by the court of appeal, after which he could apply for parole.

Yasin Hayal: Yasin Hayal (born 1980) is a Turkish criminal who is serving a life sentence for the assassination of Turkish Armenian journalist Hrant Dink.  He has served a ten-month prison term for bombing a McDonald's restaurant in the city of Trabzon, Turkey.  He has been on trial for allegedly inciting Ogün Samast to assassinate Turkish Armenian journalist Hrant Dink.  On January 16, 2012, Hayal was found guilty of soliciting Dink's murder by a Turkish court and sentenced to life imprisonment.

Honour killing of Ghazala Khan: Ghazala Khan (29 October 1986 – 23 September 2005) was a Danish woman, who was shot and killed in Denmark by her brother after she had married against the will of the family.  The murder of Ghazala had been ordered by her father to save the family honour, making it a so‐called honour killing.  No fewer than nine people from her family took part in arranging and performing the murder and they were all found guilty by "Østre Landsret" (the High Court of Eastern Denmark) on 27 June 2006 on counts of manslaughter and attempted manslaughter (of her husband).  This was a ruling of historic importance, the first time in western Europe that such a large number of family members were found guilty in an "honour killing" case.  It is expected that the conviction will serve as precedent throughout Europe for future similar cases and that the sentences will send a strong signal and have a noticeable deterrent effect.  Manu Sareen, a youth worker helping girls facing arranged marriages said: "It will have a preventive effect.  Some families may abandon similar plans because of today's ruling."

My Lai Massacre: The Mỹ Lai Massacre (Vietnamese: "Thảm sát Mỹ Lai" , ] ; , , or ) was the Vietnam War mass killing of between 347 and 504 unarmed civilians in South Vietnam on March 16, 1968.  It was committed by U.S. Army soldiers from Company C, 1st Battalion, 20th Infantry Regiment, 11th Brigade, 23rd (Americal) Infantry Division.  Victims included men, women, children, and infants.  Some of the women were gang-raped and their bodies mutilated.  Twenty-six soldiers were charged with criminal offenses, but only Lieutenant William Calley Jr., a platoon leader in C Company, was convicted.  Found guilty of killing 22 villagers, he was originally given a life sentence, but served only three and a half years under house arrest.

United States military jury: A United States military jury (or "Members", in military parlance) serves a function similar to an American civilian jury, but with several notable differences.  Only a General Court-Martial (which, depending on the offense, may impose any sentence including death and a dishonorable discharge) or Special Court-Martial (which, depending on the offense, can impose a sentence up to one year in confinement and a bad-conduct discharge) includes members.  There are no members in a trial by Summary Court-Martial (which, depending on the offense, can impose a sentence up to 30 days in confinement).  If the accused at a general court-martial or special court-martial chooses to be tried by members rather than by a military judge alone, then the members are responsible for both rendering a verdict and a sentence should the accused be found guilty of the charges.  The charges are brought forward by an officer called a "convening authority", and the convening authority also personally selects each of the members who will try the accused.  The charges which have been levied by the convening authority are prosecuted at courts-martial by Judge Advocates called "trial counsel".  Accused persons facing general or special courts-martial receive representation free of charge from Judge Advocates acting as defense counsel.  Accused persons may also be represented at general or special courts-martial by civilian attorneys hired at their own expense.  While not required by Congressional law, service policy provides that many military accused receive the benefit of representation from a Judge Advocate defense counsel free of charge at summary courts-martial as well.

William Calley: William Laws Calley Jr. (born June 8, 1943) is a former United States Army officer convicted by court-martial of murdering 22 unarmed South Vietnamese civilians in the My Lai Massacre on March 16, 1968, during the Vietnam War.  While not technically exonerated, after three and a half years of house arrest, Calley was released after a ruling by federal judge J. Robert Elliott who found that Calley's trial had been prejudiced by pre-trial publicity, denial of subpoenas of certain defense witnesses, refusal of the United States House of Representatives to release testimony taken in executive session of its My Lai investigation, and inadequate notice of the charges.  His initial conviction faced widespread public opposition both due to the campaign circumstances of civilian embedded Viet Cong, and due to Calley being singled out as the sole convicted officer in relation to the massacre.

Rob Ford conflict of interest trial: The Rob Ford conflict of interest trial was a civil action by Paul Magder versus the City of Toronto Mayor Rob Ford, held in Toronto, Ontario, Canada.  The action began in March 2012 and finally concluded in June 2013, including a trial in September 2012 and an appeal in January 2013.  Under Ontario law, politicians are required to disclose conflicts of interest and excuse themselves from votes at municipal government councils.  Magder alleged that Ford had broken the Ontario law by voting at Toronto City Council on a motion of paying back money that Ford had raised for his private football foundation.  The initial trial judge found Ford guilty and ordered removed by office, allowing the decision to be stayed and appealed.  The appeal court found that Ford did violate the conflict of interest law, but the vote of Council itself was not in order, as demanding that Ford pay back the money was beyond the penalties allowed by Ontario law.  The case was appealed to the Supreme Court of Canada, but the Supreme Court chose not to listen to the appeal, allowing the appeals court judgment to stand and Ford remain mayor.

Neeraj Grover murder case: Neeraj Grover was a television executive working for Synergy Adlabs, a Mumbai based production house.  He was found dead in May 2008; a crime for which actress Maria Susairaj and her boyfriend Lieutenant M.L. Jerome Mathew were arrested.  Mathew was eventually found guilty of culpable homicide not amounting to murder and for destroying evidence.  Susairaj was acquitted of the killing itself, but found guilty of destroying evidence.  The killing and subsequent trial received significant press coverage in India.

Chester v Afshar: Miss Chester was referred to Dr Afshar, a neurological expert, about some lower back pain.  He told her that surgery was a solution, but (the judge found at first instance) did not inform her of the 1-2% risk of these operations going wrong.  She suffered a complication, called cauda equina syndrome.  The judge found that there was a causal connection between the failure to inform and Miss Chester's injuries - if she had been informed, she would have sought further advice or alternatives.  In the Court of Appeal, Hale LJ, Sir Christopher Slade and Sir Denis Henry upheld the conclusion of the judge.

Shonelle Jackson: Shonelle Jackson is an American prison inmate currently on Alabama's death row.  In 1997, at the age of 19, Jackson was arrested for the murder of Lefrick Moore that occurred during the commission of a robbery in Montgomery, Alabama.  During the investigation, Jackson initially told detectives that he did not know the three other co-defendants, and was not present at the time of the murder.  Montgomery Police Detective Andrew Signore, having learned from the other defendants that just prior to the murder Jackson had purchased a soft drink from a local drive-thru, informed him that his fingerprints were found on a Dairy Queen cup located inside the victim's stolen vehicle.  At the time, Detective Signore did not know if any latent fingerprints had been discovered on the cup, but advanced this deception in an effort to encourage Jackson to admit to knowing the other defendants, and being present with them at some point during the night of the murder.  Jackson then admitted that he knew the other defendants and had been with them earlier in the day prior to the murder.  He then asked to amend his statement a third time to admit he was present at the time of the murder and was armed with a .380 handgun.  Following a jury trial, he was found guilty of capital murder.  In sentencing Jackson, the presiding judge, William Gordon, overrode the jury's unanimous recommendation of a life sentence, and instead imposed the death sentence.  Judicial override of a jury's sentencing recommendation is permitted under Alabama law.  Later, in a sworn deposition, juror Jan Burkes expressed uncertainty that Jackson, one of four defendants charged with this crime, fired the shot that killed Moore.

Supporting paragraphs: My Lai Massacre William Calley
Answer: William Calley