He was in prison from 1975 to 2008 for molesting a 11 year old girl when he was 17. He was released on supervision, then failed a urine test which would have resulted in him doing another third of the original 99 year sentence.

So he fled to mexico.

He has been caught, so he will do another 33 years of that original sentence according to federal guidelines in effect in 1975.

He will be 90 when he gets out this time.

OP, I strongly suggest you move on with your life. I will not judge him for something that happened 40 years, but I promise you that other people in this country will and very harshly. There is absolutely nothing you can do to help him. There is no hope and your testimony would be ignored even if you could appear at his revocation hearing. His life is done and over.

edited-corrected age for when he offended.