[MHGinTN]

The American euphemism is ‘lynch mob’. A lynch mob is a murderous mob, regardless of whom makes up the mob or whether a rope is used to murder the incarcerated without a trial. ... Since the charges against Smith were instigated by Mormons who were Smith's closest advisers of the time, I still think there may have been Mormons in the mob. But it would still be an illegal mob, euphemistically called a lynch mob.

[Old Mountain man]

Strangely enough, there was a trial in Carthage. The following were indicted and tried for the murders of Joseph and Hyrum Smith:

Thomas C. Sharp - Methodist, lawyer and yellow journalist
Mark Aldrich - Land speculator and Major in command of local militia that attacked the Carthage Jail.
William N. Grover - Captain of the Warsaw Cadets militia who ordered the attack on the jail
Jacob C. Davis - Lawyer, Captain of the Warsaw Rifle Company private militia that attacked the jail.
Levi Williams - Baptist preacher, Colonel in Illinois Militia.

There were two juries selected. The first jury had some LDS members empaneled and was dismissed.

All were acquitted when all Mormons were excluded from the second jury.

Above information from Wikipedia.