Polycarp, a leader or bishop in Smyrna, was a direct student of John. Some speculate that if the angels in Revelation are bishops, he is referred to in Rev 2-3. Reading his epistle, one can see the similar simplicity with John. He quotes Scripture as much as he uses his own words. He says little profound, but has a loving spirit towards the believers in Philippi. The account of his martyrdom reveals his wittier side. The Roman officer gave Polycarp an opportunity to avoid death by his association with the ‘atheist‘ Christians, telling him:
“Swear by the fortune of Caeser; repent and say, Away with the Atheists.”
"Polycarp…looked up to heaven, [and] said, 'Away with the Atheists.'" Adding later, “if you wish to learn what the doctrines of Christianity are, appoint me a day, and thou shalt hear them.”
Polycarp was burned alive.
Read his Martyrdom here
And about him here.