Rush and the team investigate the 1969 murder of a 19-year-old girl whose body was found in her boyfriend's apartment the day he fled to Canada to avoid fighting in Vietnam. Meanwhile Lilly learns Scotty and Christina have been seeing each other.
Synopsis: At a wedding party a girl and boy talk on the dance floor. He is in a wheelchair. She (Ellie McCormick) goes to the bathroom and is confonted by a boy named Warren Cousins who has been smoking pot. He can't believe she is engaged to another guy at the party. She walks off. She is then shown murdered. The team is then shown arresting an adult Warren Cousins who does not seem to know Ellie is dead even though she was found in his apartment. He had fled to Canada to avoid the draft.
Lily questions Warren. He denies killing her. She was supposed to join him in Canada but never showed up. She pursued Warren behind her boyfriend's back according to him. They meet outside the party and talk. He gives her his coat to keep warm. He says he's not going to Vietnam. He tells her it is impossible to not look at her. She returns his coat to him. He does not know how she ended up dead in his apartment.