Not sure I agree with that - it must be a horrendous burden for the parents to not only have to deal with losing their child (his life is over, regardless of when the lethal injection inevitably happens), but also the guilt of not having stopped it. I know it would end me if my son did something like this.
Yes, but he is still here, even if he is in jail, their son is still living and breathing. Even if he gets the death sentence, his average life before it is carried out is 15 years, although Texas has some who are still alive 25 years after receiving the death sentence.
For the parents, they never got to say goodbye, they know their child died a violent death for no reason other than that they were in school on that day. These children will never have jobs, homes, find love and have spouses and children, they will never learn anything new, they will never grow old. They will never celebrate another birthday or Christmas, they will never again tell their parents "I love you". Even in prison, he can do a lot of this, including marriage.
If one of my sons did this, I would be distraught that they had done it, but it's nothing to one of them being murdered. I used to know a girl who was murdered at 21, the hole she left her in friends and families lives will never be filled. My youngest was almost hit by a car, the door mirror passed over his head - I still have nightmares about that now and he was unharmed, if he had been one second quicker moving he wouldn't be here and I don't know how I would cope.