Riley Cooper is an adult. Tate was a kid when he made his mistake. It's ridiculous to say your view of someone changed because of something they did when they were so young. He has more than atoned for his error. I doubt you've done nearly as much as he did to atone for any mistakes you made when you were 16.
In most states, 17 year old kids routinely get charged in adult court (he said 17 not 16 DEAC).