How investigators say the killings of two University of South Florida students unfolded

BAY NEWS 9 (SPECTRUM NEWS), HILLSBOROUGH COUNTY SHERIFFS OFFICE, FLORIDA DEPARTMENT OF TRANSPORTATION, HILLSBOROUGH COUNTY, CNN By Karina Tsui, Isabel Rosales, CNN (CNN) — As the suspect accused of killing two promising doctoral students in Florida faces murder charges, authorities have laid out disturbing and grisly details surrounding the students’ disappearance. Zamil Limon and Nahida