I got Heylin's "The Double Life of Bob Dylan" (Part One) for Christmas, but couldn't get past the Intro, which skipped around a lot. I've given it another try, skipping the Intro, and have gotten caught up in it. I really like the description of Bob's teen-age years, when he was playing mostly Little Richard and Jerry Lee Lewis stuff on piano. At Camp Herzl, he met a fellow named Larry Kegan, whom he looked up to; and with a third, Louie Kemp, formed a trio. Until Kegan, in Florida, dived into what he thought was deep water, but turned out to be a foot deep, and broke his neck. Larry spent the rest of his life in a wheelchair, and Bob stayed friends with him until his death in 2001.
Here are some pictures of that time, from EDLIS:
https://expectingrain.com/dok/who/k/keganlarry.html
And here, in 1981, is Larry singing "No Money Down" (first in Indiana, then in Boston), with Bob accompanying on saxophone:
https://www.youtube.com/watch?v=Xv_wJREjpoU