Gîsca school bombing
On 4 April 1950, 29-year-old Vladimir Georgievich Tatarnikov arrived at School No. 20 in the village of Gîsca, in the Moldavian Soviet Socialist Republic (now Moldova), carrying a suitcase filled with 12 kilograms (26 pounds) of explosives, which he had stolen from his place of work at DOSARM. He then detonated the suitcase, killing twenty-one students, two teachers, and himself.