He had some good songs

Tupac though.

Statutes of Limitation vary state by state, and not all crimes are considered due to their severity.

What? No. Our laws are draconian as shit, if they apply maximums. You can get 20 for "Felony Murder" which might not involve knowingly helping a killer. Give a ride to someone that just shot someone? You could get that 20 year charge. Manslaughter is involuntary and that is like 15 or more I think. 1st and 2nd degree murder they can give life sentences. If not the death penalty.

If he's rehabilitated by then, then he should be out.

I can't imagine you'd need more than 5 years of full time therapy to be rehabilitated