Knock Knock

January 19, 2019

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48 Hours - S31 - E12

Can a driven detective and cutting-edge technology solve a nearly three-decade-old double murder? 48 HOURS and correspondent Richard Schlesinger go inside the investigation into the murders of two beloved grandmothers.

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48 Hours: Season 31 - 27 Episode s

31x1 - Click for a Killer
September 29, 2018
"48 Hours" explores the alarming world of murder-for-hire on the mysterious dark web and exposes an international criminal organization in a hunt for a self-described murder mastermind simply named Yura.
31x2 - Hollywood Horror Story
October 6, 2018
A wealthy Hollywood producer is accused of the brutal murder of his girlfriend. Was he following the plot of his frightening novel? Correspondent Maureen Maher investigates.
31x3 - Dead Ringer
October 13, 2018
A family man targeted for death lives to climb out of his own "grave." Who wanted him dead? "48 Hours" goes inside the sting that took down a hit man-for-hire scheme. Correspondent Peter Van Sant investigates.
31x4 - Cold-Blooded Killer
October 20, 2018
Richard Schlesinger and 48 HOURS go deep into the swamps of Florida for the strange case of a missing duck hunter, who is said to have been eaten by alligators nearly two decades ago, and the investigation that led police elsewhere.
31x5 - In The Name of Hate
November 10, 2018
The parents of Blaze Bernstein, a brilliant Ivy League student allegedly murdered because he was gay and Jewish, talk with 48 HOURS in their first primetime interview about the loss of their son, the neo-Nazi hate group that may have fueled anger in his alleged killer, and what they're doing to move forward. Tracy Smith sits down with Bernstein's parents.
31x6 - What Happened in Apartment 4C?
November 17, 2018
When a man goes missing, his friends turn to social media to track his final hours. What they learn is horrific. "48 Hours" correspondent Erin Moriarty investigates.
31x7 - The Mysterious Death of Casey Kasem
November 24, 2018
More than four years after radio legend Casey Kasem died, his wife, Jean Kasem, reveals for the first time her version of her husband's final days; levels allegations of murder in a lawsuit; and discusses a heated family feud.
31x8 - Defending DJ
December 1, 2018
48 HOURS brings viewers a story of dedicated parents and their struggle to restore their son's reputation after he was shot dead by a police officer.
31x9 - Find Jodi
December 15, 2018
48 HOURS and Jim Axelrod reveal new information about the more-than-two-decade search for what happened to Iowa television anchor Jodi Huisentruit,
31x10 - Sugar Land: Life or Death
January 5, 2019
A Texas man targeted by a hitman who killed two members of his family fights for the life of the person who ordered the murders - his son - in an updated encore of 48 HOURS: "Sugar Land: Life or Death".
31x11 - Jayme Closs Comes Home
January 12, 2019
48 Hours goes inside the Closs case, the extraordinary stories of other children found, and the the heartache of families with children still missing.
31x12 - Knock Knock
January 19, 2019
Can a driven detective and cutting-edge technology solve a nearly three-decade-old double murder? 48 HOURS and correspondent Richard Schlesinger go inside the investigation into the murders of two beloved grandmothers.
31x13 - Was Kevin Cooper Framed?
January 26, 2019
Erin Moriarty and 48 HOURS investigate the controversial murder case against California death row inmate Kevin Cooper and explore whether new DNA technology can spare his life.
31x14 - Kevin Cooper: Letter from San Quentin
January 26, 2019
Nearly 20 years ago a death row inmate wrote to "48 Hours" that he was framed for the murder of four people. Was evidence planted? New DNA tests could answer that question.
31x15 - Live to Tell: Standoff at Trader Joe's
February 16, 2019
For the first time, some of the hostages reveal the chilling hours they spent fearing for their lives while being held inside a Los Angeles grocery store in 48 HOURS: "Live to Tell: Standoff at Trader Joe's."
31x16 - Portrait of a Killer
February 23, 2019
Could a new California law free a teenage killer convicted as an adult for the brutal double homicide of an elderly couple? Erin Moriarty and 48 HOURS investigate the murders, the case against Daniel Marsh, and the new law.
31x17 - Fatal Crossing
March 2, 2019
A 48 HOURS investigation into the mysterious circumstances surrounding a young mother and her daughter found dead along railroad tracks in South Carolina has helped lead police to reopen the case. Peter Van Sant and 48 HOURS investigate the 2008 death of Kadie Major and her 10-month-old daughter River Lynn and the search for what happened.
31x18 - Out of Reach
March 9, 2019
The prime suspect in the murder of an American teacher while living in Seoul, South Korea, in 1988 speaks publicly about the case for the first time in 30 years.
31x19 - The Shape of a Killer
March 16, 2019
Maureen Maher and 48 HOURS investigate the deaths of Kathy Blair and Billie and Sidney Shelton and the search for answers.
31x20 - Karrie's Choice
March 23, 2019
Could a teenager be brainwashed by one parent to help murder the other parent -- and then make it look like a suicide? "48 Hours"' Erin Moriarty investigates.
31x21 - Widow's War
March 30, 2019
Peter Van Sant and 48 HOURS investigate the death of a decorated Marine colonel in Iraq and his wife's decade-long quest to get it labeled a homicide.
31x22 - Live to Tell: The Vendetta
April 13, 2019
Texas judge Julie Kocurek was shot multiple times, by an unknown man, in front of her teenage son, in the driveway of their home. She survived and shares her emotional story and her work to stop others from being targeted.
31x23 - In Jason's Name
April 20, 2019
In her first American television interview, the sister of an Irish businessman who was murdered in Winston-Salem, N.C., speaks out to defend his honor.
31x24 - A Death in Payson Canyon
April 27, 2019
Without question, the death by suicide of 16-year-old Utah teen Jchandra Brown on May 5, 2017 was a tragedy. But was how it happened a crime? David Begnaud and 48 Hours investigate the death of Brown and the search to find out what really happened to her in "A Death in Payson Canyon".
31x25 - The Case Against Enrico Forti
May 4, 2019
Enrico Forti, a former windsurfing champion and Italian television producer who had contracts with ESPN, sits in a Florida prison serving out a life sentence for a murder he says he didn't commit. Erin Moriarty and 48 HOURS meet Forti and follow the trail of evidence all the way to Europe to investigate.
31x26 - #FindPeterChadwick
May 11, 2019
Tracy Smith and 48 HOURS take viewers deep inside the investigation into the search for a multimillionaire real estate investor accused of killing his wife and staging a kidnapping plot, in "#FindPeterChadwick".
31x27 - What Happened to Rachael?
May 18, 2019
Erin Moriarty and 48 HOURS investigate the murder of DelTondo and the search for her killer in "What Happened to Rachael?"

31x1 - Click for a Killer

31x2 - Hollywood Horror Story

31x3 - Dead Ringer

31x4 - Cold-Blooded Killer

31x5 - In The Name of Hate

31x6 - What Happened in Apartment 4C?

31x7 - The Mysterious Death of Casey Kasem

31x8 - Defending DJ

31x9 - Find Jodi

31x10 - Sugar Land: Life or Death

31x11 - Jayme Closs Comes Home

31x12 - Knock Knock

31x13 - Was Kevin Cooper Framed?

31x14 - Kevin Cooper: Letter from San Quentin

31x15 - Live to Tell: Standoff at Trader Joe's

31x16 - Portrait of a Killer

31x17 - Fatal Crossing

31x18 - Out of Reach

31x19 - The Shape of a Killer

31x20 - Karrie's Choice

31x21 - Widow's War

31x22 - Live to Tell: The Vendetta

31x23 - In Jason's Name

31x24 - A Death in Payson Canyon

31x25 - The Case Against Enrico Forti

31x26 - #FindPeterChadwick

31x27 - What Happened to Rachael?

S0: Specials

S1: Season 1

S2: Season 2

S3: Season 3

S6: Season 6

S11: Season 11

S12: Season 12

S13: Season 13

S14: Season 14

S15: Season 15

S16: Season 16

S17: Season 17

S18: Season 18

S19: Season 19

S20: Season 20

S21: Season 21

S22: Season 22

S23: Season 23

S24: Season 24

S25: Season 25

S26: Season 26

S27: Season 27

S28: Season 28

S29: Season 29

S30: Season 30

S31: Season 31

S32: Season 32

S33: Season 33

S34: Season 34

S35: Season 35

S36: Season 36

S37: Season 37

S38: Season 38