Question: As a co-founder of what did the Irish-American businessman who helped establish The Queensland Brain Institute make his fortune?

Context paragraphs:
Arno Villringer: Arno Villringer (born 1958, Schopfheim, Germany) is a director at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany; director of the Department of Cognitive Neurology at University Hospital Leipzig; and Academic Director of the Berlin School of Mind and Brain and the Mind&Brain Institute, Berlin.  He holds a full professorship at University of Leipzig and an honorary professorship at Charité, Humboldt-Universität zu Berlin.

Chuck Feeney: Charles Francis "Chuck" Feeney (born April 23, 1931) is an Irish-American businessman and philanthropist and the founder of The Atlantic Philanthropies, one of the largest private foundations in the world.  He made his fortune as a co-founder of the Duty Free Shoppers Group, which pioneered the concept of duty-free shopping.  Feeney gave away his fortune in secret for many years, until a business dispute resulted in his identity being revealed in 1997.  Over the course of his life, Feeney has given away more than $8 billion.

Thomas Murphy (Collector): Thomas Murphy (1821 – August 17, 1901) was an Irish-American businessman and politician from New York City, serving as a New York state senator for a total of three terms, 1866 through 1867, and in 1879.  He had joined the Republican Party and made his fortune selling equipment to the Union Army during the American Civil War.  Afterward, he became part of the political machine run by US Senator from New York Roscoe Conkling, and was appointed as the Collector of the Port of New York from 1870 to 1871.

Sallyanne Atkinson: Sallyanne Atkinson AO (born 23 July 1942) was Lord Mayor of Brisbane from 1985 to 1991 in Queensland, Australia.  She is the only female to hold the position.  In 2017 she is Chairman of the Museum of Brisbane, President of the Council of The Women's College at the University of Queensland and Chair of the Advisory Board of the Queensland Brain Institute at the University of Queensland.

John Conness: John Conness (September 22, 1821 – January 10, 1909) was a first-generation Irish-American businessman who served as a U.S. Senator (1863–1869) from California during the American Civil War and the early years of Reconstruction.  He introduced a bill to establish Yosemite National Park and voted to abolish slavery.  His advocacy of Chinese immigration and civil rights cost him his constituency.

Linda Richards (neuroscientist): Linda Richards is an Australian researcher at Queensland Brain Institute (QBI) at the University of Queensland.

McKnight Brain Institute: The McKnight Brain Institute (MBI) at the University of Florida is a research and teaching center, which conducts integrated Research in neuroscience, neurology, neurosurgery, psychiatry, cognitive science, and related areas.  The MBI is one of the nation’s most comprehensive and technologically advanced centers devoted to discovering how the normal brain operates, and how we can repair the brain following injury, disease, or aging.  The MBI has over 300 faculty from 50 Departments in the UF with current major research focuses including neurodegeneration (such as AD, PD, and ALS), age-related memory loss, brain and spinal cord injuries, brain tumors, and addiction.

Queensland Brain Institute: The Queensland Brain Institute (QBI) is an Australian neuroscience research institute, located in Brisbane at the St Lucia campus of The University of Queensland.  Founding director Professor Perry Bartlett established the QBI in 2003 with assistance from The University of Queensland, Queensland State Government, and Chuck Feeney, founder of The Atlantic Philanthropies.  The current building commissioned in 2004 and on 19 November 2007, the current purpose-built facility was opened by former Queensland Premier Anna Bligh.  Since 2015, Professor Pankaj Sah has been Institute director.  Professor Linda Richards is the Deputy Director (Research).

Joseph E. LeDoux: Joseph E. LeDoux (born December 7, 1949) is an American neuroscientist whose research is primarily focused on the biological underpinnings of emotion and memory, especially brain mechanisms related to fear and anxiety.  LeDoux is the Henry and Lucy Moses Professor of Science at New York University, and director of the Emotional Brain Institute, a collaboration between NYU and New York State with research sites at NYU and the Nathan Kline Institute for Psychiatric Research in Orangeburg, New York.  He is also the lead singer and songwriter in the band The Amygdaloids.

Robert W. Conn: Robert W. Conn (born December 1, 1942) is President and Chief Executive Officer of The Kavli Foundation, a U.S. based foundation dedicated to the advancement of basic science research and public interest in science.  A physicist and engineer, Conn is also the current Board Chair of the Science Philanthropy Alliance, an organization that aims to increase private support for basic science research, and Dean Emeritus of the Jacobs School of Engineering at the University of California, San Diego (UC San Diego).  In the 1970s and 1980s, Conn participated in some of the earliest studies of fusion energy as a potential source of electricity, and he served on numerous federal panels, committees, and boards advising the government on the subject.  In the early 1970s, he co-founded the Fusion Technology Institute at the University of Wisconsin-Madison (UW), and in the mid-1980s he led the formation of the Institute of Plasma and Fusion Research at the University of California, Los Angeles (UCLA).  As a university administrator in the 1990s and early 2000s, Conn served as Dean of the School of Engineering at UC San Diego as it established several engineering institutes and programs, including the California Institute for Telecommunications and Information Technology, known as Calit2, the Center for Wireless Communications, and the Whitaker Center for Biomedical Engineering.  While at UC San Diego he also led the effort to establish an endowment for the School of Engineering, which began with major gifts from Irwin and Joan Jacobs.  Irwin M. Jacobs is the co-founder and founding CEO of Qualcomm.  While Conn was dean, the engineering school was renamed in 1998 the Irwin and Joan Jacobs School of Engineering at UC San Diego.  Conn's experience in the private sector includes co-founding in 1986 Plasma & Materials Technologies, Inc. (PMT), and serving as Managing Director of Enterprise Partners Venture Capital (EPVC) from 2002 to 2008.  Over the years he has served on numerous private and public company corporate boards.  Conn joined The Kavli Foundation in 2009.  He helped establish the Science Philanthropy Alliance in 2012.

Supporting paragraphs: Queensland Brain Institute Chuck Feeney
Answer: the Duty Free Shoppers Group