If he'd only committed 2nd degree murder, he'd be eligible for parole after roughly 15 years. I'm guessing that parole eligibility for 1st degree murder under these circumstances is more like 25 years on a life sentence. Then the earliest parole he could receive on the consecutive 23-year sentence would be about 15 years. So I think he's looking at 40 years in stir. But even if he only served half that time, he'd be 82 at release.