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ad FD-302 (Rev. 1-25-60) FEDERAL BUREAU OF INVESTIGAT”’ ) ~~ Date the LIZ. bse. csemarmagrren roncant United States Penitentiary, Alcatraz, ac on July 17, 1962, he was checking material stored in the paint room in "A" cell block at the institution. This portion of the cell block has been enclosed and locked off from the other cell blocks. "A" cell biock has not been used for housing prisoners since 1952, because of lack of plumbing and security grill work. The material in the paint room is issued to inmates who are working inside the main cell block in painting and refurbishing the cell block areas. He noticed a five gallon can of white cement paint and took the lid off of it. The paint was solidified. evidently due to someone placing water therein. He cracked the cement and upon doing so found the following items inside the cement: 7 Spoon handles 9 Pieces of heavy metal, ranging from 2" to 12" in length, similar to the framework of the ventilator grills in the back of the inmate's cells. 4 Pieces of heavy wire simllar to that of the ventilator grill. 2 Pleces of metal from 5" to 7" long. l Three-eighths inch screw bolt about 4" long, He said that innate Sy bec been on the paint crew and w ccess to the paint room. In addition, inmate 5 an inmate plumber in the main cell block, e had access to the paint room, TT. 2An.nwbh i WS. A 24.242 2,_2 — i | = He terial and gave it to Special Agen (IRS 0 that it could be maintained, 7/19/62 - - Alcatraz, California ‘le PF 76-2887 On gt Ee File iii - — — Dote dictated7//19/62 This document contcina neither recommendations nor conclusiona of the FBI, It is the property of the FB1 and ia loaned to your agency; it and ite contents are not to be distributed outside your agency. ~6- 7 L 6 i lo