"Criminal Minds" 9 p.m. CBS — A sniper terrorizing Dallas may be inspired by the Kennedy assassination.
"Law & Order: SVU" 9 p.m. NBC— A cop in a psych ward claims his former squad is corrupt.
"Modern Family" 9 p.m. ABC (100th episode) — Cameron struggles to find a way to tell his sister about his engagement.
"American Horror Story" 10 p.m. FX (third season debut) — A young girl discovers she has a strange genetic affliction.
"CSI" 10 p.m. CBS — The CSIs investigate a fire at a music venue.
"Nashville" 10 p.m. ABC — Juliette performs at a private party for a wealthy couple.
"Duck Dynasty" 10 p.m. A&E — The guys make duck jerky.
