At the end of Thursday's session, jurors began hearing the nine-hour police interview with Kirkland after his arrest. That is expected to last for two more days.
WATCH Mitsch testimony and the beginning of Kirkland's interview here:
Kirkland was convicted of the murders of 13-year-old Kenney and 14-year-old Casonya Crawford in 2010, but the Ohio Supreme Court ruled he was eligible for resentencing in light of an "improper" comment made by Hamilton County Prosecutor Joe Deters during the trial.
Kirkland was already serving a life sentence for the murders of Rolison and Mary Jo Newton, and Deters said if the jury didn't give Kirkland the death sentence, the murders of Kenney and Crawford would be "freebies for him."
Jurors will decide whether to uphold the death sentence or give Kirkland life in prison.