This is a rhetorical and negative question that emphasizes that Saul was indeed the man who had persecuted the believers. AT: "This is the man who destroyed those in Jerusalem who called on this name Jesus!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
# this name
Here "name" refers to Jesus. AT: "the name of Jesus" (See: [[rc://en/ta/man/translate/figs-metonymy]])
# causing distress among the Jews
They were distressed in the sense that they could not find a way to refute Saul's arguments that Jesus was the Christ.