evidence: A federal judge on Thursday handed singer R. Kelly a 20-year prison sentence for his convictions of child pornography and the enticement of minors for sex but said he will serve nearly all of the sentence simultaneously with a 30-year sentence imposed last year on racketeering charges. [...] Prosecutors had acknowledged that a lengthy term served only after the New York sentence could have erased any chance of Kelly ever getting out of prison alive. It's what they asked for, arguing his crimes against children and lack of remorse justified it. With Thursday's sentence, though, Kelly will serve no more than 31 years. That means he will be eligible for release at around age 80, providing him some hope of one day leaving prison alive.