Zacharias, son of Barachias

(Greek form of Zechariah).

Son of Barachias, who, our Lord says, was slain by the Jews between the altar and the temple. (Matthew 23:35; Luke 11:61) There has been much dispute who this Zacharias was. Many of the Greek fathers have maintained that the father of John the Baptist is the person to whom our Lord alludes but there can be little or no doubt that the allusion is to Zechariah, the son of Jehoiada, (2 Chronicles 24:20,21) and he may have been called "the son" of Barachias from his grandfather. (B.C. 838), and you can find more about that here on st-takla.org on other commentaries and dictionary entries.  He is mentioned as being the martyr last recorded in the Hebrew Scriptures (as Abel was the first) -d Chronicles being the last book in their canon.

* See other occurrences of the same term: Zacharias.