KnoWhy #825 | November 18, 2025

Who Killed Joseph and Hyrum Smith?

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Scripture Central

Detail of "Greater Love Hath No Man" by Casey Childs. Image courtesy of The Church of Jesus Christ of Latter-day Saints.
Detail of "Greater Love Hath No Man" by Casey Childs. Image courtesy of The Church of Jesus Christ of Latter-day Saints.

“To seal the testimony of this book and the Book of Mormon, we announce the martyrdom of Joseph Smith the Prophet, and Hyrum Smith the Patriarch. They were shot in Carthage jail, on the 27th of June, 1844, about five o’clock p.m., by an armed mob—painted black—of from 150 to 200 persons. Hyrum was shot first and fell calmly, exclaiming: I am a dead man! Joseph leaped from the window, and was shot dead in the attempt, exclaiming: O Lord my God! They were both shot after they were dead, in a brutal manner, and both received four balls.” Doctrine and Covenants 135:1

At a time when speculative historical reconstructions and fictional narratives about the murders of Joseph and Hyrum Smith are widely circulating,1 we thought it would be helpful to provide all readers with a reliable overview of the general circumstances surrounding Joseph Smith’s final days and the fate of his assassins.

The Know

“I am going like a lamb to the slaughter, but I am calm as a summer’s morning. I have a conscience void of offense toward God and towards all men. I shall die innocent, and it shall yet be said of me—he was murdered in cold blood.”2 Joseph Smith made this famous and chilling pronouncement as he traveled to Carthage in the evening of Monday, June 24, 1844, with friends and many members of the Nauvoo City Council who had been indicted for the crime of “riot” in connection with their destruction of the The Nauvoo Expositor anti-Mormon press two weeks earlier, after the City Council had ruled that that printing office was an illegal nuisance.3

The prisoners arrived at Carthage shortly before midnight, only to find the town in utter chaos due to the influx of the rowdy state militia members and dissident Latter-day Saints. The mob had been drinking and brawling all day in anticipation of Joseph’s arrival, and a riot was in full swing.4 This melee would last much of the time when Joseph and Hyrum were in Carthage.5

The following morning, Tuesday, the brothers were arrested on a second warrant, this time for treason.6 A hearing for the first charge that afternoon was presided over by Robert F. Smith, captain of the Carthage Greys militia and chair of the Central Corresponding Committee for the political party called “The Anti-Mormon Party”—an extraordinary conflict of interest. Smith’s job as chair was to coordinate anti-Mormon political activities.7 Though the hearing should have been held earlier in the day, Robert Smith delayed it until late afternoon, when there was only time to begin a hearing for the riot charges. The hearing for the treason charges would have to wait for another day, necessitating Joseph and Hyrum’s remaining at Carthage.8

The full trial for the riot charges was set for the circuit court’s next session in October, and the bail was set at a $500 per defendant, more than twice the customary amount for a misdemeanor like inciting a riot. Despite the high cost, most of the men posted bail and left, but Joseph and Hyrum were retained in custody, without bail, on the second charge of treason.9 John Taylor and Willard Richards, along with a few others, voluntarily remained behind with them.10

The preliminary hearing on the charge of treason was scheduled for Saturday, June 29, allowing time for witnesses to arrive and for the lawyers to prepare. After learning that the prisoners feared they would not be safe in Carthage, Governor Ford reportedly promised to take Joseph and Hyrum with him when he went to Nauvoo on Thursday, June 27.11 However, when he departed Carthage, he left the prisoners behind, leading John Taylor to say that the Governor leaving them behind was a breach of faith and an insult, thus dashing their last hope for survival.12 A conspiracy to murder the Prophet was in place, with many of the conspirators meeting the night of June 26 and again early in the afternoon of June 27, 1844. At these meetings and various smaller ones, Thomas B. Sharp from Warsaw and other notable figures in the Anti-Mormon movement urged the mobs to assassinate Joseph while the Governor was out of town.13

On that Thursday afternoon, the Carthage Greys, the county militiamen who had been left to protect Joseph and Hyrum from the mob, reportedly only gave a token resistance when the assassins came to town and stormed the jail. The Greys were later said to have purposefully used blanks to fire over the heads of the advancing mob, and a large portion of the militia moved slowly across town toward the jail, allowing the mobbers plenty of time to enact their nefarious plan and flee the scene, scattering most easily to the west. The Greys made no attempt to pursue the assassins.14

During the mob’s attack, the men in the room braced against the door to keep the attackers from entering. Hyrum may have fired at the door a single shot pistol that John S. Fullmer had brought and given to Joseph the day before for self-defense, but Hyrum was struck by a couple of balls and was killed during the attempt. Joseph ran to Hyrum exclaiming “Oh! My poor dear brother Hyrum” and then immediately jumped up, reached his hand through the door, and fired indiscriminately into the stairwell all six rounds of another pistol that had been given to him by Cyrus Wheelock earlier that day, wounding some but to no avail.15 The accounts mention that it misfired two or three times.

After John Taylor was grievously wounded, Joseph attempted to jump from the window, perhaps trying to draw the gunfire away from his friends.16 Joseph was shot a total of four times and fell from the window to the ground below. At the time they died, Joseph was the President of the Church, and Hyrum was serving as Assistant President of the Church and as Church Patriarch. Their enemies thought and hoped that their deaths would decimate The Church of Jesus Christ of Latter-day Saints.

Fortunately, however, most members of the Church remained loyal to the Church, to the Prophet, and to their Patriarch. One longtime friend, Newel Knight, mourned their passing with a touching tribute, calling them “two of the best men that ever lived,” and saying, “They died as they had ever lived––faithful and true to that God who has used them as his servants to build up the Church and Kingdom of the Last Days. … [T]heir names will ever be held in honorable remembrance by all lovers of truth, virtue, integrity, justice and righteousness.”17

In late May 1845, the circuit court came to session at Carthage. Among the cases heard was People v. Levi Williams, in which five defendants were charged with the murder of Joseph Smith: Levi Williams, Thomas C. Sharp, William N. Grover, Jacob C. Davis, and Mark Aldrich. Four others were indicted, but never arrested: John Wills, William Voras, and two men only referred to as Allen and Gallaher.18

Latter-day Saints worried that participating in the trial “would only endanger their lives while accomplishing nothing toward punishing the murderers,” and thus, many refused to testify. Church leaders went so far as to hide from those sent to summond them to appear in court. Their suspicion proved to be warranted.19

On the opening day of jury selection, the defense team submitted two affidavits declaring the county commissioners and sheriff and his deputies were biased against the defendants. They also requested the dismissal of the entire panel of prospective jurors chosen by those officials and asked that substitute officials fill the jury panel instead. This request was granted, and a jury was selected without a single Latter-day Saint in it.20

A heated six-day trial commenced in front of a crowd that was “armed to the teeth.” Evidence established that most of the defendants had been in Carthage shortly before or after the murders, and Sharp was said to have given a speech in which he encouraged the mob attack. However, most witnesses refused to offer any incriminating evidence against the accused. The prosecutor denounced his own star witnesses and withdrew charges against Davis and Grover during his closing statement. In subsequent closing statements, one of the defense attorneys claimed the murders were necessary, desired by most of the citizens of the county, and legally justified. Another witness threatened a civil war if the defendants were not acquitted. As one reporter noted, “The whole [thing] appears more like a farce than a solemn trial.”21

The jury deliberated for only two and a half hours, including a lunch break. In an act that President Dallin H. Oaks and historian Marvin S. Hill long ago labeled as an act of lawless “popular sovereignty,” the jury declared all those who had been accused not guilty of murder.22

There was no trial for the murder of Hyrum Smith, as the prosecutor did not appear.23

The Why

By understanding the events of Carthage and its aftermath as they unfolded, Latter-day Saints can learn important truths about Joseph and Hyrum Smith, their character, their callings as apostles of the Lord Jesus Christ, and the ways in which they were unjustly treated. Joseph and Hyrum Smith died as martyrs. They never rescinded their witness of the miracles and revelations of the Restoration but willingly gave their life “to seal the testimony of” the Doctrine and Covenants “and the Book of Mormon”24 

Hyrum was a man said to have “possesse[d] the mildness of a lamb and the integrity of a Job, and in short, the meekness and humility of Christ,” and he and Joseph loved one another “with that love that is stronger than death.”25 Indeed, Hyrum was urged repeatedly to take his family and flee, but refused to let his brother go to his death alone.26 He was also equally as willing as Joseph was to give his life for his testimony.27

After the brutal persecutions a few years earlier in Missouri, Joseph was well aware of the lengths to which the Church’s enemies would go and the imminent danger they posed to his people. In the last few months of his life, he also seemed to realize his appointed time on earth was nearly fulfilled and was coming to an end. He said repeatedly that he was willing to lay down his own life if it meant saving the lives of his people.28

In one such statement, he said:

I do not regard my own life. I am ready to be offered, a sacrifice for this people, for what can they do? Only kill the body, and their power is then at an end. Stand firm, my friends, never flinch. Do not seek to save your lives, for he that is afraid to die for the truth will lose eternal life. Hold out to the end, and we shall be resurrected, and become like Gods, and reign in celestial kingdoms, principalities and eternal dominions. … You have stood by me in the hour of trouble, and I am willing to sacrifice my life for your preservation.29

Ultimately—and tragically—Joseph was right that their enemies’ power ended with his murder. His and Hyrum’s deaths alleviated the mounting pressure from the mobs outside the Church, as well as from dissenters and deserters within the Church.  Their deaths bought Church members the time they needed to finish building the temple, leave Nauvoo safely, and to prepare to move west and to roll forward the work of the Kingdom of God. By going to Carthage to face trial, Joseph and Hyrum placed themselves between the mobs and the people of Nauvoo, sealing their testimonies with their blood. In doing so, they exemplified the Savior’s teachings in John 15:13: “Greater love hath no man than this, that a man lay down his life for his friends.” 

Further Reading
Footnotes
Doctrine and Covenants
Carthage Jail
Joseph Smith Martyrdom
Martyrdom
Smith, Hyrum
Smith, Joseph, Jr.
Richards, Willard
Nauvoo Expositor
Latter-day Saint History (1820-1846)
Taylor, John