Eusebius: the Same, II. 2.

And of this James, Clement also relates an anecdote worthy of remembrance in the seventh book of the Hypotyposes, from a tradition of his predecessors. He says that the man who brought him to trial, on seeing him bear his testimony, was moved, and confessed that he was a Christian himself. Accordingly, he says, they were both led away together, and on the way the other asked James to forgive him. And he, considering a little, said, "Peace be to thee" and kissed him. And so both were beheaded together.