Originator: FBI
From: WELSH, WARREN R.
To: DIRECTOR, FBI
Document date: 07/12/1967
Document type: PAPER, TEXTUAL DOCUMENT

## Page 1

124-10300-10077

2022 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992

JFK Assassination System

Date:

Identification Form

Agency Information

4/27/201

AGENCY :

RECORD NUMBER:

RECORD SERIES:

AGENCY FILE NUMBER :

FBI

124-10300-10077

HQ

CR 92-6692-89

Document Information

ORIGINATOR :

FROM:

TITLE:

FBI

WELSH, WARREN R.

TO: DIRECTOR, FBI

DATE:

07/12/1967

' PAGES:

16

SUBJECTS:

NRO, ASSOC, BKG, RES, CRIM ACT

DOCUMENT TYPE: PAPER, TEXTUAL DOCUMENT

CLASSIFICATION: Secret

RESTRICTIONS: 1B; 4

CURRENT STATUS: Redact

DATE OF LAST REVIEW:

07/20/1998

OPENING CRITERIA: APPROVAL OF CIA

COMMENTS:

"ted

49.1

HY 50953

14

DocId: 32309711

Page 1

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## Page 2

17-651

iRTING OFFICE

MIAMI

TITLE OF CASE

FEDERAL BUREAU OF INVESTIGATION

SECRET

OFFICE OF ORIGIN

MIAMI •

DATE

7/12/67

INVESTIGATIVE PERIOD

5/31/67-7/10/67

REPORT MADE BY

WAkEN B. WELSH

CHARACTER OF CASE

FRANK LANG "LEFTY" ROSENTHAL,

Aka

(52) 1112/96

CLASSIFED BY 56685L0/GCL

DECLASSIFY ON. ZUX_(1)

AR; IGA

SEE REVERSE

SIDE

CR

CLASP

TFICATION

ACTION

Il2d

REFERENCES:

Report of SA WARREN R. WELSH, dated 8/10/65

at Miami.

Report of SA WARREN R. WELSH, dated 6/16/67.

TOT RIATE ACEICO

AND FIELD OFFICES

ADVISED B'

/SLIP(S) 03

DATE

at Miami.

Miami teletype to the Bureau 6/22/67. *•

NG

Bureau tejetype to Miami 8/23/67.w. 4 50

Chicago airtel to Miami 6/29/67.

- P=

nied by

ENCLOSURES TO THE BUREAU (2) :

Deskasily a

000

iTHFORMATION CONTAINED Original and one copy of letterhead

memorandum

12N1SM

characterizing informants utilized in this.-

reporters

# 211,326

ASRWASE

Classifled by

SPÜBIA/ETCL

MIAMI

Declassify

OADR 4/28/35

Sagar

se hds been: Pending ove

ROVED

IES MADE:

ofer nethonths

O Yes

DJ NO

SPECIAL AGENT

MCHARGI

DO NOT WRITE IN SPACES BELOW

- Bureau (92-6692)

- USA, Miami

(Enss=2)

7

Attn: Departmental Attorney

WALLACE JOHNSON

CIA HAS NO OBJECTION TỤ

1 - Chicago (92-2295) (InfO ECLASSIFICATION ANHICA A 1957

2

- Miami (92-726)

RELEASE ON CIA INFORMATION.

IN THIS DOCUMENT EXCEPI FOR BRACKETS

Notations

Kp 2-8-98

N 103

Dissembation Record of Attached Report

14 BitT

Necd.

id.

vd.

7/70/7

7

26

TUL &O 1967

SIN

SCH REVERS

SIDL FOR

CLASSIFICATION

HH 50953 DooId: 32309711 Page 2

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34324

1/23561

GiL.

{51 5 4780 (4)

his, to

HH 50953 DocId: 32309711 Page 3

of serial..:

3=13-20 556/ dkf

man

12/16/78

---

## Page 4

SECRET

MM 92-726

TONYANG - UNANT SETA

JANUARY - JUNE

1. CON ACTOR MANH US POSADA CARRILES, 15)D

form information received roma reliable source o

source was ater identified as LUIS POSADA CARRILES 1

POSADA adVised that DIEGO BORGES was acting as

an agent

for three Americans who were seeking to buy pistols,

explosives,

blasting caps, hand grenades and silencers. The

identity of the Americans was not known to POSADAJalthough u

he bie Birth society ember

of the Ku Klux Klan or possibly

(POSADA, rotided the following background informa

tion concerning individuals involved with BORGES in the

procurement of arms and munitions by the three Americans:

HERMINTO DIAL, 13LN. W. 3rd Street, Miami,

Florida, sold sixty hand

grenades (USMK II) to BORGES

for delivery to Americans. DiaL received from BOrGEs three

hundred sixty dollars for grenades but delivered only forty.

Subsequently, BORGES asked source to go to DIAZ and either

pick up other twenty grenades or the one hundred twent

lollars in cash which they represented. sal

RAMON ESCARDA, 620 S. W. 9th Street, who served

supposed to

hundred pounds

in the U.S. Army, 1958-195 for delivery to BORGES for

obtain one

pentolite

$320-350.

3

in anti-CASANO 3213 9 63h Street Mence, setive

5020

1.62 caliber silencers to

Americans for $1, 000. s

$(u)

Source gave

descriptions of three Americans

and

2280 recorded license plate or car utilized by Eroup ye) (l

-COVER PAGE-

PEORETI

HH 50953 DooId: 32309711 Page 4

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## Page 5

'SECREL

MM 92-726

Departmental Attorney JOHNSON further recommended

that LUIS POSADA be contacted in regard to the present

address of ALBERTO LARRAIN-MAESTRE, who

fugitive.

is a Narcotics

This meet between source and MAESTRE would be

covered by Bureau Agents and Agents of the Federal Bureau

of Narcotics. The purpose of coverage would be to establish

the present whereabouts of the fugitive so that his arrest

no that he a19o120h

could be effectuated.

It is the opinion of Departmental

Attorney JOHNSON that MAESTRE could possibly be used as

a witness against FRANK ROSENTHAL and NORMAN ROTHMAN

garding their involvement in bombing matters.

On July 7, 1967, a conference was held at the

request of Departmental Attorney JOHNSON.

In attendance

at this conference were JAMES DURANT and DAVE GOODHART

of the State's Attorney's Office, Dade County, Florida,

and SAs. SWINNEY and WELSH of the

FBI.

The above mentioned

course of action recommended

by Departmental Attorney JOHNSON was fully explained to

state authorities

insofar as the involvement of ROSENTHAl.

Although the general plan involving ROSENTHAL was explained

to the local authorities, at no time was the source or the

employer of source mentioned to local authorities.

Assistant States Attorney DURANT, when apprised

of the sensitive source of information and

the chance of

requesting dismissal of indictment against ROSENTHAL, rE-

quested time in order that this proposal could be fully

discussed with States Attorney GERSTEIN.

- INFORMANTS -

MM T-1 is MARTIN DARDIS.

MM I-2 is MM 950-C.

MM T-3 is M 676-C.

MM T-4 is MM 869-₽C.

COVER PAGE-

FSECRET

300-130501

NW 50953

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