You should if you're interested read the book John's first wife wrote. it may change your opinion a bit.
The hundreds of other books by "insiders""are just heresay, except for the music itself. the author is not Yoko, so, although approved by Yoko it is interviews I really would read this with caution.
it may change your mind a bit. Yoko was/is a leech. I have met here and she is pleasant enough. her narrative may just be too sell copy though IMO. John, was in love and obsessive, and at times a crap parent to his first son.
A lot of people I know are too. All have their reasons, maybe not the right ones but remember that guy had the FBI going through his garbage, was considered a threat to US security for awhile, By a president no less. on and on. i have to cut him a bit of slack. His life was far from ordinary. not an excuse though.
May Pang's book is also interesting since she was Johns girlfriend when he and Yoko broke up for awhile. AKA the lost weekend.
funny, how Yoko whores out John's original artwork by signing HER autograph to it and charging outrageous prices these days. intersting but a dead man tells no tales,too bad John can't comment.