A suspect’s arrest in the killing of a Columbus, Ohio, couple leads to the next big question: What was the motive?

By Elise Hammond, CNN (CNN) — The clock is ticking for the man accused of killing a couple in their Columbus, Ohio, home to be sent back to the Buckeye State to face charges. Michael David McKee was arrested over the weekend in Illinois on two counts of murder in the deaths of Monique Tepe