Richard Bauckman (Wikipedia profile; Theopedia profile) is retired professor of New Testament studies at St. Mary’s College, University of St. Andrews, Scotland. As a New Testament scholar, his research interests include Jesus, the Gospels, and early Christianity.
Bauckham’s 2006 book Jesus and the Eyewitnesses: The Gospels as Eyewitness Testimony carries this description from Amazon:
This new book argues that the four Gospels are closely based on eyewitness testimony of those who knew Jesus. Noted New Testament scholar Richard Bauckham challenges the prevailing assumption that the accounts of Jesus circulated as “anonymous community traditions,” asserting instead that they were transmitted in the name of the original eyewitnesses.
Here also is a 2007 review of the book (Another Homerun for Bauckham) from the book’s Amazon web page. Bauckham’s work is a thoroughly researched explanation of the ancient literature we have in the four gospels.
In this ten-minute video from YouTube, Bauckman outlines what his research has revealed about the historical nature of the gospels.