The Existential Jesus is by John Carroll who asserts that Jesus is "is anti-church, anti-establishment, anti-family, and anti-community; a teacher, with himself his only student, he gestures enigmatically from within his own torturous experience, inviting the reader to walk in his shoes and ask the question, Who am I? (according to amazon.com). His work includes a new translation of the book of Mark.
Carroll, John. The Existential Jesus. Counterpoint, 2009. ISBN 978-1582434650.