Murder by Numbers

Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now focuses mainly on true crime stories with only occasional editions that focus on other topics.

Combines four to five segments of dramatic re-enactments, interviews and updates of real human and paranormal mysteries. An audience interactive call-to-action request allowed viewers to call in with tips to help solve the cases.

Did Jens Soering murder his girlfriend's parents in 1985 — or was she the killer? This docuseries digs into questions that still swirl around the case.

There are over 100,000 cold cases in America, and only about 1% are ever solved. With recent advancements in technology and the methods used to solve these cases, as well as the unwavering dedication of victims’ families, law enforcement and the public, “Cold Case Files” explores the cases that defied the odds. Each episode of the Emmy-nominated series examines the twists and turns of one murder case that remained unsolved for years, and the critical element that heated it up, leading to the evidence that finally solved it. Featuring interviews with family members, friends, detectives, and others close to the cases, the refreshed classic series examines all facets of the crime and shines a light on a range of voices and victims.