Who is St. Peter, St. John from Jesus: A Revolutionary Biography and what is their importance?

Peter and John were, according to Biblical teachings, two of Jesus' most influential and most loved disciples. While the book does not dispute the emotional closeness of the two to Jesus and the moral inspiration he gave them, it nevertheless portrays them as involved, either directly or indirectly, in a struggle for control of the early Christian church and for recognition as the ultimate representatives of Jesus' will following his death.