20/20
Season 42 Episode 6 - The DNA Detective
6.1 ?
1978
News, Documentary
Teacher's gruesome 1992 death launches decades-long mystery; Pennsylvania teacher's 1992 death grows cold
Episodes in Season 42
1
Abby Hernandez
59 min
2
Shot in the Dark
3
From Classroom to Captive
120 min
4
The Real Rookies
5
What Really Killed Prince
6
The DNA Detective
NOW PLAYING
7
Being Melania: The First Lady
8
My Son Is Not a Monster
9
Murder in the Mansion
10
The Man Behind The Mask
11
Becoming Michelle: A First Lady's Journey with Robin Roberts
12
Brave New Face
13
Mary Poppins Returns: Behind the Magic
14
Family Secrets
15
Til Death Do Us Part
16
Remembering George H. W. Bush
17
The Devil in Disguise
18
Gypsy's Truth and Lies
19
The Bobbitts: Love Hurts
20
Robert Blake
21
Unfaithfully Yours
22
Evil in Eden
120 min
23
My Father BTK
120 min
24
Black Widow
25
Bundy
26
The Deadly Ride
27
With Friends Like These
28
Deadly Dance in Texas
29
The Dropout
30
My Mother's Sins
120 min
31
The Secret in Her Eyes
60 min
32
The Woman in the Suitcase
33
Your Biggest Fan
34
Seed of Doubt
35
Last Defense
36
Undercover Mother
37
One Night in Central Park
38
The Final Act
39
The Perfect Nanny
80 min
40
President Trump: 30 Hours
41 min
41
A Family Affair
81 min
42
The Affair
41 min
43
The Hustlers
40 min
44
30 Years Searching
81 min
