@meeruf
I'd go crazy in solitary confinement. Definitely not luxury. Do you know if he is going to spend the rest of his sentence in solitary, or is it possible he'll see some leniency in a few years and be allowed to mingle with the other prisoners?
I guess this serves him right. I'd rather be put to death than be confided in a box for decades. If I recall correctly, he can spend more than 21 years in prison (basically indefinitely, or as long as he's deemed a danger to the society?)
Then again, nothing will make up for the 70+ lives he took.