“And I persecuted this way unto the death, binding and delivering into prisons both men and women.”
King James Version (KJV)
22:4 And persecuted this way - With the same zeal that you do now. Binding both men and women - How much better was his condition, now he was bound himself.
Ac 22:4 I persecuted this way. He did this from his zeal towards God, whom he thought he thus served. Unto the death. This seems to imply that Stephen was not the only martyr in whose death he was an accomplice.