On the Case with Paula Zahn/Season Four

Season Four
On the Case with Paula Zahn
Season Premiere	April 17, 2011
Season Finale	July 24, 2011
Episode Count	13
Previous Season Three	Next Season Five

Season Four of On the Case with Paula Zahn premiered on April 17, 2011.

Episodes

#	#	Title			Airdate
40	1	Silenced			April 17, 2011
41	2	Message in Blood			April 24, 2011
42	3	Race to Judgment			May 1, 2011
43	4	A Tangled Past			May 8, 2011
44	5	Campus Killer			May 29, 2011
45	6	Murder by Numbers			June 5, 2011
46	7	Under Suspicion			June 12, 2011
47	8	A Mother's Nightmare			June 19, 2011
48	9	A Murder at Loose Chippings			June 26, 2011
49	10	Betrayal at Charisma Farms			July 3, 2011
50	11	Mystery in the Mountains			July 10, 2011
51	12	A Slip of Fate			July 17, 2011
52	13	Murder Ordained?			July 24, 2011