Leandro Aragoncillo
United States Marine
About Leandro Aragoncillo
Born 1958. Leandro Aragoncillo is a Filipino and American double agent and united States Marine Corps.
Leandro Aparente Aragoncillo (born September 22, 1958) is a Filipino-born American former FBI intelligence analyst and a retired United States Marine Corps Gunnery Sergeant who was convicted of spying against the United States Government in 2007. A naturalized Filipino-American, he was charged with espionage and with leaking classified information to the regime of a former Filipino president.
The FBI labeled Aragoncillo the first known case of espionage within the history of the White House. For over thirty-one months, from 1999 to 2001, Aragoncillo was assigned under Vice President Al Gore and then later under Vice President Dick Cheney.
Hired to work for the FBI at the Army's Ft. Monmouth base in New Jersey in July 2004, Aragoncillo began sending classified documents in January 2005, according to a federal complaint.
On October 5, 2005, Aragoncillo was indicted and arrested in New Jersey for espionage. Federal agents accused him of stealing classified information, including details about President Gloria Macapagal Arroyo and then passing that information onto opposition leaders in the Philippines.
According to reports compiled by Filipino intelligence professionals, there were indications of a link between Aragoncillo and the French intelligence service, Direction générale de la sécurité extérieure. Frequent visits by Aragoncillo to Manila allegedly were interspersed with clandestine meetings between identified, French operatives and several "illegals" (i.e. unregistered agents) around 2002 to 2004.
Statutes used against Aragoncillo: Count 1: & c - Espionage Act of 1917 Count 2: - Espionage Act of 1917 / McCarran Internal Security Act 1950 Count 3: & 2 - Comprehensive Crime Control Act 1984 / Computer Fraud and Abuse Act 1986 / The National Information Infrastructure Protection Act 1996 / USA Patriot Act 2001 / etc.
Michael Ray Aquino, a former deputy director of the Philippines National Police who lived in New York City, was arrested also and was charged. He was accused of receiving documents. He pleaded guilty to unlawful possession of secret, U.S. government documents. He faced a jail sentence of between 70 and 87 months plus a fine of $250,000.
Leandro Aragoncillo, on the other hand, was sentenced on July 18, 2007, in New Jersey by U.S. District Judge William H. Walls to ten years in prison. Under a proposed plea agreement, Aragoncillo had faced up to twenty years in prison.
Don’t just read it —
keep it.
Full-length biographies made to live with: read them, listen on the way to work, watch them tonight.
- E-book
- Audio
- Video
Instant download · yours to keep · every purchase keeps this site free
Important facts
People in Leandro Aragoncillo's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Leandro Aragoncillo's
Frequently asked questions
Who is Leandro Aragoncillo?
United States Marine
When was Leandro Aragoncillo born?
Leandro Aragoncillo was born on 22 September 1958 in Philippines.
What is Leandro Aragoncillo's occupation?
Leandro Aragoncillo is a double agent and united States Marine Corps.
What nationality is Leandro Aragoncillo?
Leandro Aragoncillo is Filipino and American.
Sources & further reading
· Wikipedia: Leandro Aragoncillo
· DBpedia: Leandro Aragoncillo
Cite this page
APA: Biography.guide. (2026). Leandro Aragoncillo. https://biography.guide/leandro-aragoncillo/
MLA: "Leandro Aragoncillo." Biography.guide, https://biography.guide/leandro-aragoncillo/.
Chicago: "Leandro Aragoncillo." Biography.guide. https://biography.guide/leandro-aragoncillo/.
Data last updated: 2026-09-22 · Spot an error? Report a correction.
Page generated 2026-09-27 05:06 UTC