Ryan meets with the baggage handler. Ryan places a bag with a camera attached on the belt and sends it into the conveyor belt. The team later figures that Suzanne was killed when she hit her head while on the belt. Back at the lab, Kyle preps Suzanne's body for examination. Tara tells Kyle that they found an illegal sleeping drug in Suzanne's system. She says that she thinks that someone gave her the drug so he can take advantage of her. Kyle sees a burn mark on Suzanne's palm. Back on the plane, Eric and Calleigh find a cigarette butt hidden in the trash and process it for evidence. Eric finds a fingerprint on the plane that matches a man named Marvin Duffy.

Horatio and Frank bring Marvin to the station. They ask Marvin if he burned and raped Suzanne. Marvin says that he tried to have a smoke in the bathroom, but he was caught by Suzanne. He says that Suzanne reached in the trash and was burned by the cigarette. Horatio tells Marvin that he thinks that he killed Suzanne because he didn't want to get caught.

Ryan and Boa Vista examine underneath the plane. They find human hair stuck in the access panel leading to the cabin. They figure that someone dumped Suzanne's body into the baggage area. They see that there was only one man sitting in the front row near the access panel named Nolan. The team calls Nolan to the station. Nolan tells Frank and Horatio that he is an air marshal. He says that he was not aware that Suzanne's body was dropped into the baggage area. He says that he was more concerned about the safety of the passengers because the plane went through turbulence.