"Everything was dictated down to the minute, and that really frustrated him."
Ironically, Clements -- the man Ebel is accused of killing -- was a champion of reducing solitary confinement for prisoners.
One thing authorities might never know about Ebel is, simply, why?
His alleged actions might not have a clear logic.
But they at least appear to have a clear trajectory, said Rev. Leon Kelly, an anti-gang activist in Colorado.
"This kid here, who may have tried to find a sense of identity throughout the course of his life now ... in an evil, senseless way, he's found it."