Lawsuit claims Tyquine Lee deteriorated physically and mentally in solitary confinement at Virginia's Red Onion prison. His mother claims he would "would start to growl and bark like a dog."
The Stewart Detention Facility in Lumpkin, Georgia, had previously been accused of 'potential misuse' of solitary confinement.
The nation's largest juvenile justice system will no longer allow kids to languish in conditions many call torture.
A recent ruling in Oslo is yet another strike against a form of punishment that reeks of medievalism.
A settlement won inmates held in isolation shorter lengths of stay, better food and other improvements.
On Tuesday, Chelsea Manning was sentenced to 21 days with restrictions on recreation for violating prison rules.
The United Nations Committee Against Torture questioned U.S. representatives on issues ranging from force-feedings at Guantanamo to police brutality in Ferguson.