They killed the minister, who tried to shoot them, during the takeover. The guerrillas received US$2 million ransom, and had their official communiqué read on the radio and printed in the newspaper La Prensa. Over the next year, the guerrillas got 14 Sandinista prisoners released from jail, and with them were flown to Cuba. One of the released prisoners was Daniel Ortega, who later became president of Nicaragua. The group also lobbied for an increase in wages for National Guard soldiers to 500 córdobas ($71 at the time). The Somoza government responded with further censorship, intimidation, torture, and murder. In 1975, Somoza imposed a state of siege, censoring the press, and threatening all opponents with internment and torture. Somoza's National Guard also increased its violence against people and communities suspected of collaborating with the Sandinistas. Many of the FSLN guerrillas were killed, including its leader and founder Carlos Fonseca in 1976. Fonseca had returned to Nicaragua in 1975 from his exile in Cuba to try to reunite factions that existed in the FSLN. He and his group were betrayed by a peasant who informed the National Guard that they were in the area. The guerrilla group was ambushed, and Fonseca was wounded in the process. The next morning the National Guard executed Fonseca. Split (1977–1978) After the FSLN's defeat at the battle of Pancasán in 1967, it adopted the "Prolonged Popular War" (Guerra Popular Prolongada, GPP) theory as its strategic doctrine. The GPP was based on the "accumulation of forces in silence": while the urban organization recruited on the university campuses and robbed money from banks, the main cadres were to permanently settle in the north central mountain zone. There they would build a grassroots peasant support base in preparation for renewed rural guerrilla warfare. As a consequence of the repressive campaign of the National Guard, in 1975 a group within the FSLN's urban mobilization arm began to question the GPP's viability. In the view of the young orthodox Marxist intellectuals, such as Jaime Wheelock, economic development had turned Nicaragua into a nation of factory workers and wage-earning farm laborers. Wheelock's faction was known as the "Proletarian Tendency". Shortly after, a third faction arose within the FSLN. The "Insurrectional Tendency", also known as the "Third Way" or Terceristas, led by Daniel Ortega, his brother Humberto Ortega, and Mexican-born Victor Tirado Lopez, was more pragmatic and called for tactical, temporary alliances