In the year since his sentencing, the pale, slight 15-year-old has grown several inches. Now 6'3", he is a star student at the prison school, and prison officials say he is a well-behaved prisoner who takes care of vulnerable kids.
He continues to express remorse. "I feel horrible about it because I am so ashamed.... I can't write it down. I can't tell it out loud how sorry I am."
When asked to tell his victims how sorry he is, Williams said: "I tried to in court, but I couldn't really. I just want everybody to know that I'm really, really, really sorry about everything I did. And, you know, I know they think it was bad on their side of the gun, but, I don't know, I think it was worse on mine because they don't have to hold the responsibility of doing that to everybody."
Williams will not be eligible for parole until he is 65, but he does not think he will live to see that day. "I don't really have a criminal background. I'm not really like a mean, like, hard-hearted guy. So I don't think I'm going to make it in prison.... It's a tough place."
He said he is scared "just not knowing what's going to happen" from moment to moment, in a prison where there are "5,000 bullies in one place."