The Behavioral Analysis Unit's most prominent agent is David Rossi, a founding member of the BAU, who returns in season 4 to help the team solve new cases, while pursuing some unfinished business of his own.
The Behavioral Analysis Unit's most prominent agent is David Rossi, a founding member of the BAU, who returns in season 4 to help the team solve new cases, while pursuing some unfinished business of his own.
