Accepting a plea bargain is a decrease of 3 levels (points) in the sentencing guidelines, so about 2-3 years would have been shaved off if he took a plea, IIRC.
Also interesting is this:
(5) If the defendant engaged in a pattern of activity involving the sexual abuse or exploitation of a minor, increase by
5 levels.
“
Pattern of activity involving the sexual abuse or exploitation of a minor” means any combination of two or more separate instances of the sexual abuse or sexual exploitation of a minor by the defendant, whether or not the abuse or exploitation (A) occurred during the course of the offense; (B) involved the same minor; or (C) resulted in a conviction for such conduct.
ETA: That would put us at level 37 - which is 210-262 months.