Home/ Resources / Projects / CIA Cryptonyms / cryptonym: AMBRONC-5

Cryptonym: AMBRONC-5

Definition:
Juan Manuel Guillot Castelloro aka Renato M. Lopez Zamoka
Status:
Documented
Sources:

104-10103-10120: INTERVIEW WITH MR. JAMES S. PEKICH

In this CIA memo, AMBRONC-5 is identified as Juan Manuel Guillot Castelloro.

104-10103-10360: COMMENTS ON BOOK V, SSC FINAL REPORT, THE INVESTIGATION OF THE ASSASSINATION OF PRESIDENT KENNEDY: PERFORMANCE OF THE INTELLIGENCE AGENCIES

AMBRONC-5 is the agent that sent the messages outlining a proposed sabotage effort against the Havana electric company and an attempt to assassinate Castro in the days prior to the Bay of Pigs. A debriefing of him in November 1960 reveals that he knew about plans to kill Castro back then. He was in Cuba between March-June 1961, with the mission to organize resistance groups. He returned 5/2/62, was arrested 5/29/62, and was executed 8/30/62. He is reported never admitting he was a CIA agent. His name is not in Castro's Black Book.

104-10193-10180: DISPATCH: JMZIP/PM - CONTACT REPORT OF MEETINGS

AMBRONC-5 is described in this memo as the deputy of AMCOAX-1 (Juan Pujals Mederos).

104-10193-10016: DISPATCH-DEBRIEFING REPORT- SANTIAGO SANCHEZ DE LA TORRE

Clarence Smeryage (note: probably Tom Clines) states in his memo that there was much tension in AMYUM/MRR during the Dec 1961 period between AMHOOK-1 and AMBRONC-5.

104-10074-10390: CABLE - REQUEST AUTHORITY MOUNT OPERATION PEPE

As part of Operation PEPE during December 1961, Guillot (also known as Renato M. Lopez Zamoka) was infiltrated into Cuba along with John Koch Gene/

Fabian Escalante, The Secret W/ar, (Ocean Press, 1995)

Following the Bay of Pigs "grew the theory that a a select group of men, artificially placed in a given favorable social environment would be capable of causing a popular revolt and spreading the uprising through the country...one of the CIA's priorities was the reorganization of the internal front. The counterrevolutionary groups and bands were structures that already existed and should be used...William Harvey met with several of these agents during the early days of 1962, to personally instruct them in the tasks they were to carry out. These included Manuel Guillot Castellanos, Julio Hernandez Rojo (AMOT-99), Esteban Marquez Novo, Felix Rodriguez, Eugenio Martinez (the Watergate burglar), Clemente Inclan Werner, Luis Hernandez Rocha (AMHINT-53), Miguel and Ramon Orozco, Alberto del Busto, Pedro Cameron and Manuel del Valle...the greatest hope was placed in Guillot Castellanos...in the MRR he worked alongside Manuel Artime...(with) the reputation as an excellent organizer. He came from a Catholic background (and) had been a militant member of the University Association...his friendship with Juan Falcon Zammar, alias Esteban (AMFOX-1), the coordinator of the MRR on the island, guaranteed him a position of influence in that structure, which was the CIA's favorite instrument for the Mongoose projects. The strategy that he pursued was to unite the principal counterrevolutionary groups...from January to August 1962, a total of 5,780 counterrevolutionary actions were recorded, of which 718 were acts of economically important targets. The offensive included the destruction of millions of arrobas of sugarcane and warehouses of other merchandise through arson, the murder of revolutionaries, attacks on merchant vessels, bombings of coastal hotels - in short, an all-out war." Guillot left Cuba March 1962, met with William Harvey in Miami, they chose five groups for the Unity Front: MRP, MDC, November 30, DRE, & MRR. Guillot was captured 5/29/62, executed in August.

104-10193-10175: Dispatch of AMOT-6 Report Dated 13 Sept 1961

10/17/61 contact report by Alton Pirnack re Debriefing of Lazaro: Carlos Bandin aka Lazaro is national coordinator of MRR. Two factions in JMWAVE area: Bebe Acosta and AMJAVA-4/Rafael Quintero. Both factions see AMBRONC-5 as their leader. Lazaro, AMCOAX-1 and former UR chief Cesar were all arrested because of SABORIT of the AMPUG net. AMPUG-1 introduced Lazaro to Saborit.

Contributors:
Matthew Scheufele • John Newman • Bill Simpich

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