In a state of political, social, and economic upheaval, Cámpora and Vice President Vicente Solano Lima resigned in July 1973, calling for new elections, but this time with Perón as the Justicialist Party nominee. Perón won the election with his wife Isabel Perón as vice president. Perón's third term was marked by the escalating conflict between left and right-wing factions within the Peronist party, as well as the return of armed terror guerrilla groups like the Guevarist ERP, leftist Peronist Montoneros, and the state-backed far-right Triple A. After a series of heart attacks and with signs of pneumonia in 1974, Perón's health deteriorated quickly. Perón suffered a final heart attack on Monday, 1 July 1974, and died at 13:15. He was 78 years old. After his death, Isabel Perón, his wife and Vice President, came into office.