St. Stephen was a Jew living in the Hellenic provinces, related to the Apostle Paul and one of the first seven deacons ordained by the Apostles to serve the Church in Jerusalem (thus making him an archdeacon).
In the words of Asterias,:St Stephen was "the starting point of the martyrs, the instructore of suffering for Christ, the foundation of righteous confession, since Stephen was the first to shed his blood for the Gospel."
The Holy Spirit worked powerfully through his faith, enabling him to perform many miracles and always defeat the Jews who would dispute with him.
The Jews in their hatred of St. Stephen lied about him to the people, but St. Stephen with his face illumined reminded the people of the miracles God had worked through him and even rebuked the Jews for killing the innocent Christ.
The people were enraged by what they thought was blasphemy and 'gnashed their teeth' at Stephen. It was then that he saw his Christ in the heavens and declared it so. Hearing this, the Jews took him outside the city and stoned him to death, with his kinsman Saul (later St. Paul) holding their coats while they did it. Afar off on a hill was the Virgin Mary and St. John the Theologian who witnessed this first martyrdom for the Son of God and prayed for him while he was being stoned. This occurred about a year after the first Pentecost.