Preview: CSI: Las Vegas (9.09): 19 Down | सी एस आइ Las Vegas Spoilers & पूर्व दर्शन | Tv Zine 

When a new murder leads to a connection with an infamous serial killer, Grissom secretly joins the class of well-known criminal pathologist Dr. Raymond Langston, to gain access to the killer and get a crack in the case.
कीवर्ड्स: सी एस आइ, cbs, nick stokes, season 9