Violence and Crimes

Why is there to much violence in the world? We live in such a violent corrupt world right now I cannot even imagine having children and raising them in it. I think that there should be a stronger penalty for those who commit violent crimes. Most crimes that happen are for no reason at all, Just for the fun in doing it. My mom went to school with a man who went to Las Vegas and shot a cashier in the head just to see what it felt like to kill someone. He now sits on death row, while his attorneys fight to get him out. It looks like he could get out with just a short time served. He should never be able to get out, the punishment should fit the crime.