And it doesn't take that long. Two weeks out from a haircut, and you've got it. Jack Ruby had it.
The Garage Shooter did NOT have it. He was razored clean.
Of course, neither Ruby nor Bookhout had such long hair in back. So, either Bookhout was wearing a wig OR they added it to the photo. That happens to be from the Beers photo.
But, this issue of the scruffy vs. razored neck is enough, all by itself, to cinch it that Jack Ruby was NOT the Garage Shooter. Those who are mature and honest by nature will realize it.