The killing of Calvo Sotelo with police involvement aroused suspicions and strong reactions among the government's opponents on the right. Although the nationalist generals were already planning an uprising, the event was a catalyst and a public justification for a coup. Stanley Payne claims that before these events, the idea of rebellion by army officers against the government had weakened; Mola had estimated that only 12% of officers reliably supported the coup and at one point considered fleeing the country for fear he was already compromised, and had to be convinced to remain by his co-conspirators. However, the kidnapping and murder of Sotelo transformed the "limping conspiracy" into a revolt that could trigger a civil war. The involvement of forces of public order and a lack of action against the attackers hurt public opinion of the government. No effective action was taken; Payne points to a possible veto by socialists within the government who shielded the killers who had been drawn from their ranks. The murder of a parliamentary leader by state police was unprecedented, and the belief that the state had ceased to be neutral and effective in its duties encouraged important sectors of the right to join the rebellion. Within hours of learning of the murder and the reaction, Franco, that until then had not been involved in the conspiracies, changed his mind on rebellion and dispatched a message to Mola to display his firm commitment.