Old Testament in the Raw, Part 4: Who Wrote the Pentateuch?

Moses, JEDP, Documentary Hypothesis, Authorship, Torah, Pentateuch.
Who wrote the Pentateuch? Many Christians assume that Moses did, and there's some good evidence for Mosaic authorship. But there are also other theories that should be considered. There's also clear evidence that there have been some editorial updating that has happened to the original Pentateuch.