Michael David McKee was taken into police custody and charged with the brutal murders of Ohio dentist Spencer Tepe and his wife, Monique Tepe, on Saturday, January 10. Now, the major mistake he allegedly made that led to his arrest is being revealed. McKee, 39 - who was reportedly married to Monique, 39, from 2015 until she filed for divorce in 2017 - was identified as a suspect after authorities in Columbus saw his car near the slain couple's home using neighborhood surveillance.