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

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 Bristy, both 27 and originally from Bangladesh, were last seen nearly two weeks ago. Limon’s body