This article (at least based on the snippet here) talks about solitary confinement for entire sentence as if it was somehow unique and shocking punishment but solitary confinement for multi decade sentences is already a standard practice in the US despite of the mountains of data that show that it's inefficient as a rehabilitation method and leads to an astounding number of repeat offenders, mental illness and inability to cope with the outside world. It is one of the most horrific practices in US and still it's spreading in usage.