Your friend saw this resource on bethinking.org and thought you should see it:
New Evidence the Gospels were Based on Eyewitness Accounts
Fascinating lecture pointing out the details which show that the New Testament Gospels must have been based on eyewitness accounts.
See the full resource online by visiting bethinking.org:
is a collection of resources which aims to make sense of the big questions of life about God, Jesus and Christianity.