Charles Ellicott Commentary 2 Kings 12:21

"For Jozacar the son of Shimeath, and Jehozabad the son of Shomer, his servants, smote him, and he died; and they buried him with his fathers in the city of David: and Amaziah his son reigned in his stead." — 2 Kings 12:21 (ASV)

For Jozachar ... smote him. —Rather, And Jozachar ... it was that smote him. The names are different in Chronicles. (See the Note on 2 Chronicles 24:26.) Thenius notices the curious coincidence of the names as given here with the last words of the murdered Zechariah, Jehovah see, and avenge! The prophet was avenged by Jozachar (“Jehovah remembers”), the son of shimeath (“hearing”), and Jehozabad (“Jehovah bestows”), the son of Shomer (“watcher”).

With his fathers — i.e., in the city of David; but not in the sepulchres of the kings (2 Chronicles 24:25).