President Pedro Hermión.
The Fuentes Commission, formally known as the Commission to Inquire into the Assassination of President Pedro Hermión, was a special commission created by the Congress of the United States of Mexico to investigate the assassination of Mexican President Pedro Hermión.
Hermión was running for a second presidential term in the summer of 1851 in the face of growing opposition to his prosecution of the Rocky Mountain War. Shortly after giving a speech to Congress on the evening of 19 June, Hermión was shot by Emiliano Zangora, a former member of the Presidential Guard. After shooting the President, Zangora shouted "Viva Huddleston y Paz!" and attempted to flee, but was shot and killed by the Congressional Guard.
Zangora's words caused suspicion to fall on former President Miguel Huddleston, but he denied any involvement. Huddleston had retired from politics after his loss to Hermión in the 1845 Mexican elections, but he still had considerable support among members of the Liberty Party. Hermión's assassination ended all attempts by the Libertarians to nominate Huddleston, and instead they chose Assemblyman Hector Niles of California. After Niles' victory in the 1851 Mexican elections, the Congress established the Fuentes Commission to investigate the assassination. Sobel does not say who chaired the Fuentes Commission, but most likely it was the Chief Judge of the Mexico Tribunal.
The Commission's Final Report was released in 1852. The Report cleared Huddleston of any involvement in Hermión's death, stating that "Our leader was killed by a single assassin, operating alone, apparently half-crazed ... the assassin Zangora was a disappointed former guard, who being rejected for promotion for good and sufficient reason, vowed to take revenge on the man whom he had once admired, but who now seemed to have rejected him."
Sobel noted that up to the present day there are those who reject the Commissions findings and believe that Huddleston did organize the killing, citing Samuel Menzer's The Huddleston Conspiracy: The Brown Menace of 1851 (London, 1970) as an example. Sobel also notes the existence of people who believe Hermión's death was arranged by North American Governor-General Henry Gilpin, citing Joan Kahn's The Unknown History of the Hermión Assassination: The Gilpin Connection (New York, 1968) as an example of this group.