Question: Who is known as the Milwaukee Cannibal and got John Balcerzak fired for giving him an injured child?

full_context: Document 1: Joachim Kroll: Joachim Georg Kroll (17 April 1933 – 1 July 1991) was a German serial killer, child molester and cannibal. He was known as the Ruhr Cannibal ("Ruhrkannibale"), Ruhr Hunter ("Ruhrjäger") and the Duisburg Man-Eater ("Duisburger Menschenfresser"). He was convicted of eight murders but confessed to a total of 14 which he committed in and around the Ruhr metropolitan region.
Document 2: Karl Clark: Osby Karl Clark, or Karl Clark (born October 16, 1957) is an American police officer from North Carolina, and a former police chief, best known for his service on international assignments with the International Police. Best remembered as a member of the 'UNTAET Crime Scene Detachment' (ca 1999) in East Timor, during which time he took part in the exhumation of several hundred victims of homicide. It was Clark that instigated the first large scale exhumations after the 1999 UN intervention in East Timor, many of which were dependent on intelligence information collected by another American police officer, Allen Williams. Clark later served in a major role for the United Nations unit investigating human rights violations in East Timor. Major cases included the Liquiçá Church Massacre and the massacre at the house of Manuel Carrascalão.
Document 3: Kevin P. Clark: Kevin Clark is a former commissioner of the Baltimore Police Department, who held the position from early 2003 until November 2004. A former NYPD officer, Clark's term as police commissioner was strained with both the mayor and police department as Clark was involved in domestic issues and an unpopular turnover of veteran officers such as former Major Gary D'Addario. He was fired by then-mayor Martin O'Malley, resulting in a lawsuit in which he sought $120 million in damages and fought to get back his job. O'Malley's justification for the firing had been that these accusations were distracting to his duties as a commissioner.
Document 4: John Balcerzak: John Balcerzak is a police officer in Milwaukee, Wisconsin and former president of the Milwaukee Police Association, having served in that post from 2005 to 2009. In 1991, he was fired for having handed over an injured child to serial killer Jeffrey Dahmer, despite a bystander's protests. He appealed his firing and was subsequently reinstated.
Document 5: Raising Jeffrey Dahmer: Raising Jeffrey Dahmer is a 2006 American drama film based on the case of serial killer Jeffrey Dahmer. The film is directed by Rich Ambler and stars Rusty Sneary as Dahmer, Scott Cordes as his father, and Cathy Barnett as his stepmother.
Document 6: Dahmer (disambiguation): Jeffrey Dahmer (1960–1994) was an American serial killer and sex offender.
Document 7: Christopher Scarver: Christopher J. Scarver (born July 6, 1969) is an American convicted murderer who also killed serial killer and cannibal Jeffrey Dahmer at Columbia Correctional Institution, Portage, Wisconsin, in 1994. Scarver used a 20-inch (51 cm) metal bar he removed from a piece of exercise equipment in the prison weight room to beat Dahmer and another convicted murderer, Jesse Anderson. Both Dahmer and Anderson died later from their injuries. Scarver was sentenced to two further life sentences for the killings.
Document 8: Armin Meiwes: Armin Meiwes ( ; born 1 December 1961) is a German computer repair technician who achieved international notoriety for killing and eating a voluntary victim whom he had found via the Internet. After Meiwes and the victim jointly attempted to eat the victim's severed penis, Meiwes killed his victim and proceeded to eat a large amount of his flesh. Because of his acts, Meiwes is also known as the Rotenburg Cannibal or "Der Metzgermeister" (The Master Butcher).
Document 9: Jeffrey Dahmer: Jeffrey Lionel Dahmer (May 21, 1960 – November 28, 1994), also known as the Milwaukee Cannibal, was an American serial killer and sex offender, who committed the rape, murder, and dismemberment of seventeen men and boys between 1978 and 1991. Many of his later murders involved necrophilia, cannibalism, and the permanent preservation of body parts—typically all or part of the skeletal structure.
Document 10: Frank Jude, Jr.: Frank Jude, Jr., a.k.a. Frankie Lee Jude, Jr., (born August 14, 1978) is a Wisconsin man who was severely beaten by off-duty Milwaukee police officers in the early-morning hours of October 24, 2004. Following a state trial that ended with the jury acquitting the three police officers charged, a federal investigation led to plea agreements with three police officers and the indictment of five police officers, including the three who were acquitted in state court. Before trial, one of these five pleaded guilty. The federal jury acquitted one of the remaining police officers and the three police officers who were acquitted in state court were convicted in federal court.
Document 11: Zbigniew Bujak: Zbigniew Bujak (born 29 November 1954 in Łopuszno) was an electrician and foreman in 1980 at the Ursus tractor factory near Warsaw, Poland. He became engaged with trade union activists, and during the strike action, he organized strike committees at the Ursus factory. He became chairman of the Warsaw Solidarity branch in September 1980 and was one of the few Solidarity leaders who escaped arrest in 1981 after martial law in Poland was declared to break Solidarity. He became one of the leaders of the Solidarity's underground movement, organizing underground committees including underground press and radio. He was finally arrested in 1986, becoming the last Solidarity leader to be captured. Soon afterwards he was released in general amnesty, and participated in Polish Round Table Talks with the government in 1989. He was elected to the Sejm (Polish parliament) in the 1989 elections. In the 1990s he joined right-wing, liberal political parties, including the Citizens' Movement for Democratic Action, Democratic Union and Freedom Union. In 1992 he helped found the Labour Union (UP) party and was one of the party's leading members. He won a seat to the Sejm at the 1993 legislative elections, representing UP, and served as a member of parliament until 1997. He also held the position of chairman of Główny Urząd Ceł (Main Tariff's Office). In the 2000s (decade), after his 2002 defeat for the post of mayor of Warsaw, he stopped participating actively in politics.
Document 12: Dahmer (film): Dahmer is a 2002 American biographical horror film directed by David Jacobson and starring Jeremy Renner and Bruce Davison. Renner plays American serial killer Jeffrey Dahmer, a mentally-unstable recluse in Wisconsin who kidnaps, rapes, and murders multiple men.
Document 13: My Friend Dahmer: My Friend Dahmer is a graphic memoir by artist John "Derf" Backderf about his teenage friendship with serial killer Jeffrey Dahmer.
Document 14: Bernard Kerik: Bernard Bailey "Bernie" Kerik (born September 4, 1955) is an American former police officer, consultant and convicted felon, who served as New York City Police Commissioner from 2000 to 2001, and New York City's Correction Department Commissioner and First Deputy, overseeing the New York City jail system, from 1995 to 2000.
Document 15: John Timoney (police officer): John Francis Timoney (July 2, 1948 – August 16, 2016) was an American policeman and law enforcement executive. He served as Chief of the Miami Police Department from 2003-10. He was previously Commissioner of the Philadelphia Police Department (1998–2002) and held a variety of positions with the New York Police Department (1967–96), including its Chief of Department (senior sworn/uniformed position) and First Deputy Commissioner (second position). He worked for the Ministry of the Interior of Bahrain as a police consultant. Timoney drew both international praise and criticism for his handling of mass protests.
ground_truth: Jeffrey Dahmer