Sorry to bump an old thread, but I just recently became aware of this case and just watched the Disappeared episode on Lee Cutler..
IMHO, I feel very strongly this was a suicide. The other possibilities just don't add up for me. If he supposedly walked off, "Into The Wild" like the book, he did so without clothes, money, a cell phone, hunting/camping gear, and a car?? How long could a person last in a Wisconsin winter without such items? Wouldn't he be better prepared if that was his plan?
The whole theory of possibly traveling to Israel seems far fetched to me. He would need documents, ID's, and money to fly and with his case already in LE's hands within 24 hours of his disappearence, wouldn't a customs agent have spotted him?
I personally believe he jumped into the Baraboo river and the current took him away and/or animals got to his remains. I have a neighbor whose 16 year old son drowned in the Des Plaines river while swimming with friends and his body was sadly never found. Many, many LE and volunteer search teams looked for him for quite some time and despite eye witnesses knowing the exact spot where he was last seen, they were never able to find his body.
My heart goes out to Lee Cutler's family.