On Monday morning, Joseph, his brother Hyrum, Willard Richards, John Taylor, the only two of the Twelve at home, with several others, started for Carthage, of course with solemn feelings, and it appears that Joseph in particular anticipated the fatal result in part, but said he wished at any rate that Hyrum might be saved to stand in his place. He expressed himself to this effect, that he should die for this people, and if so, he should be murdered in cold blood. Sometime before they reached Carthage, they met a company of men with orders from the governor of the state to take our public arms, i.e., the arms belonging to the state. ...
I was down in the city when they came in, and was in Brother Hyrum's company. In his own house, he was in better spirits by far than when he left. He told me he thought that all things would go well, etc. and as soon as the arms could be collected, they again took their leave of their wives and families, alas for the last time, and came to Carthage (from henceforth of cursed memory).
The governor, it appears, treated them respectfully and took them to his own lodgings until as he said, for fear of the people he desisted and after having had a trial in part, they were unexpectedly and unlawfully thrust into the jail. They went to Carthage on Monday evening, the 24th of June, 1844. On Thursday, the governor left them and with a company of men, came to Nauvoo, having left a guard at the jail, but of the Carthage Greys who had just before been in a state of mutiny. Yet as all the troops had pledged themselves to the governor to abide by the laws, these were entrusted with the care of the prisoners.
[Joseph Fielding, Diary (1843-1846), Church Archives in "They Might Have Known That He Was Not a Fallen Prophet"--The Nauvoo Journal of Joseph Fielding," transcribed and edited by Andrew F. Ehat, BYU Studies 19 (Winter 1979), http://www.boap.org/LDS/Early-Saints/JFielding.html]