John Horn

King & Spalding LLP

$ $$$

Peachtree Street Northeast 1180
Atlanta 30309 GA US

Former Atlanta U.S. Attorney John A. Horn specializes in government and internal investigations, white collar criminal defense, and crisis management. He is a partner in the Special Matters and Government Investigations practice, twice named by Law360 as White Collar Practice Group of the Year, as well as in the Data, Privacy & Security practice, named Law360 Privacy Practice Group of the Year

During his 16 years as a federal prosecutor, John supervised and prosecuted the office’s largest cases involving complex financial fraud, cybersecurity, corruption, money laundering, and national security. An accomplished trial and appellate lawyer, he advises corporations and individual clients reacting to investigations and enforcement actions by government agencies. John also counsels clients regarding data breaches, remediation, and prevention, as well as other corporate initiatives and compliance programs.

As U.S. Attorney for one of DOJ’s largest offices, John guided the strategies and initiatives for more than 6 million citizens in the Northern District of Georgia as well as the national DOJ community. He served on the Attorney General’s advisory subcommittees on financial fraud, cybercrime, violent crime, and other subjects, and he chaired the AGAC’s Elder Justice Working Group.

John created the district’s first Cybercrime Unit, which prosecuted leading international cases involving sophisticated hackers of financial institutions, the creators of preeminent malware/botnot programs, and state actors conducting corporate espionage.

Through his extensive experience in long-term wiretap investigations, John served on DOJ’s national Title III/electronic evidence working group and lectured at training events regarding the collection and use at trial of electronic evidence.

Before becoming U.S. Attorney, John held other leadership roles within the office, including First Assistant and Chief of the Appellate Division, and has extensive experience in conducting jury trials, performing appellate arguments, and testifying before both the U.S. and Georgia Senate. He also supervised an active False Claims Act practice focusing on healthcare fraud, off-label marketing, government contracting fraud, and many other claims.

John began his DOJ career focusing on long-term wiretap investigations of international drug cartels, and was the lead prosecutor in the takedown of a significant component of Mexico’s Beltran-Leyva cartel, including kingpin Edgar Valdez-Villarreal, aka “La Barbie.” He also served as a member of the prosecution team in the case of Centennial Olympic Park bomber Eric Rudolph.

Before joining the U.S. Attorney’s office, John practiced in King & Spalding’s Special Matters & Government Investigations group.  Upon graduating from law school, he clerked for Judge Stanley F. Birch Jr. of the Eleventh Circuit Court of Appeals, as well as Judge Harold L. Murphy of the U.S. District Court.

EDUCATION:

  • J.D., University of Virginia School of Law
  • B.A., College of William and Mary

ADMISSIONS:

  • Georgia
  • Supreme Court of Georgia
  • U.S. Court of Appeals for the Eleventh Circuit
  • U.S. District Court for the Northern District of Georgia

ASSOCIATIONS:

  • Member, National Association of Former United States Attorneys

Cost

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Peachtree Street Northeast 1180
Atlanta 30309 GA US
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Lina Stillman

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Broadway 42
New York 10006 NY US
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