The Pizarro brothers' extreme degradation of Manco—urinating on him while chained—was intended to break him. Instead, it became an unforgivable act of psychological warfare that backfired, destroying any chance of a puppet regime and fueling an all-out war of resistance.

Throughout their violent conquest and feuds, the Spanish were remarkably legalistic. They constantly sought royal charters, had judges pronounce verdicts, handed down indictments, and appealed for pardons. This obsession with legal process coexisted bizarrely with their extralegal violence and betrayal, used to legitimize their actions.

During the civil war between Spanish factions, thousands of native people gathered on hillsides to watch battles like Las Salinas. They reportedly cheered for both sides, hoping for mutual destruction. This portrays the conflict not just as a war, but as a gruesome spectator event for the conquered population.

To provide legal cover for killing Atahualpa, Pizarro held a rudimentary trial. The emperor was charged with a mix of political and religious crimes like regicide and incest, demonstrating the Spaniards' deep-seated need to frame their actions within a legalistic framework for their king.

The Spanish used a legal document called the "Requerimiento" to legitimize conquest. Before attacking, they read a history of the world and demanded submission to the Pope and Spanish King. Refusal provided a legal pretext for slaughter, a practice some Spaniards at the time considered absurd.

The famous moment where Atahualpa supposedly threw down a prayer book, sparking the massacre, was a manufactured pretext. The Spanish, already in ambush positions, simply needed a justification. The book ending up in the dust—whether thrown or dropped—provided the trigger for their pre-planned attack.

The conquest of the Americas was a highly legalistic endeavor. Conquistadors sought official royal charters, essentially operating under a franchise model. This legal cover was crucial not for legitimacy with the natives, but to protect their claims from rival Spanish adventurers, blending brute force with bureaucratic procedure.

The Pizarro brothers, Juan and Gonzalo, relentlessly humiliated Emperor Manco by abducting and abusing his wife and sister. This personal cruelty, driven by lust and arrogance, directly sabotaged their fragile alliance and incited the devastating siege of Cusco.

Contrary to the "black legend" of monolithic Spanish cruelty, King Charles V and contemporary Spanish chroniclers condemned the killing of Atahualpa. They viewed it as an "infamous disservice to God" and an "outstanding evil," not a justified act of conquest.