The rest of the weapons were finally delivered on 26 May. The three assassins from Belgrade testified that Major Tankosić, directly and through Ciganović, not only provided six hand grenades and four new Browning FN Model 1910 automatic pistols with .380 ACP ammunition, but also money, suicide pills, training, a special map with the location of gendarmes marked, knowledge of contacts on a clandestine tunnel used to infiltrate agents and arms into Austria-Hungary, and a small card authorizing the use of that tunnel. Major Tankosić confirmed to the journalist and historian Luciano Magrini that he provided the bombs and pistols and was responsible for training Princip, Grabež, and Čabrinović and that he (Tankosić) initiated the idea of the suicide pills.