IOWA CITY, Iowa - A judge on Wednesday delayed sentencing for the man convicted of killing University of Iowa student Mollie Tibbetts after defense lawyers said they needed time to investigate new information pointing to other potential suspects.Cristhian Bahena Rivera, 27, was scheduled to be sentenced to life in prison without parole Thursday before his lawyers revealed newly obtained information that they say might implicate a sex trafficking ring in her kidnapping and death.Judge Joel Yates ruled Wednesday the sentencing would be delayed until after he holds hearings on the defense's requests to compel prosecutors to release information about other suspects and to order a new trial.