A Dictionary of the Book of Mormon/Pacumeni
PACUMENI. At the death of Pahoran, the elder, the Nephite Chief Judge, three of his sons contended for the successorship. The people chose Pahoran, the younger. To this choice Pacumeni assented, while the other brother, Paanchi, rose in rebellion. Shortly after, Pahoran was assassinated by Kishkumen, a follower of Paanchi, when Pacumeni was chosen by the people to fill the vacant judgment seat. All this occurred in the fortieth year of the Judges, or B. C. 52.
In the year following, the Lamanites gathered an innumerable army and invaded the land of Zarahemla. Their commander was named Coriantumr. He led his vast hosts directlly towards the Nephite capital, which he surprised and captured, the Nephites still suffering from the effects of the late divisions and contentions. This was the first time, so far as we have any record, that the city of Zarahemla fell into the hands of the Lamanites.
Pacumeni fled before Coriantumr when he found the city had been surprised, the watch slain, and its streets filled with hostile troops, but he was overtaken before he could pass beyond the walls and was smitten, by the hands of Coriantumr, "against the wall, insomuch that he died,"