I believe that Saul was not married. But, some claim that Saul to be a member of the San Hedrin in order to prove that he was married before, additionally, this verse tells us that he approved the stoning of Stephen. Now how could one, not being a member of the San Hedrin and be in a position to "APPROVE" (CEV) ("CONSENTING"-KJV) someone's capital punishment?
Acts 8:1 - 2
ESV - 1 And Saul approved of his execution. And there arose on that day a great persecution against the church in Jerusalem, and they were all scattered throughout the regions of Judea and Samaria, except the apostles. 2 Devout men buried Stephen and made great lamentation over him.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.