Shimshai in the Bible

Rehum the commander and Shimshai the scribe wrote a letter against Jerusalem to Artaxerxes the king in this fashion:

Then wrote Rehum the commander, and Shimshai the scribe, and the rest of their companions; the judges, the governors, the officials, the Persians, the men of Erech, the Babylonians, the men of Susa, and the Elamites,

Then sent the king an answer unto Rehum the commander, and to Shimshai the scribe, and to the rest of their companions that dwell in Samaria, and unto the rest beyond the river, Peace, and so forth.

Now when the copy of king Artaxerxes' letter was read before Rehum, and Shimshai the scribe, and their companions, they went up in haste to Jerusalem unto the Jews, and made them to cease by force and power.