
Michael Greisen
Michael Greisen is a federal agent with the Drug Enforcement Administration (DEA) who has been named in allegations by Sebastián Marset. Marset claims that Greisen attempted to extort him and force him to provide access to cryptocurrency wallets during interrogations.
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Michael Greisen is a special agent who attempted to negotiate with Sebastián Marset before his capture.
Difunden mensajes de Marset a la DEA antes de caer detenido en Bolivia - PolicialesABC Color – leading Paraguayan newspaper, est. 1967·
Paraguay· 2026-09-15
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Sebastian Marset

Michael Greisen is one of the federal agents accused by Marset of attempting to coerce him.
Marset escribe una carta y revela supuesta extorsión por agentes de la DEA - MundoABC Color – leading Paraguayan newspaper, est. 1967·
Paraguay· 2026-06-26






