67-year-old Michael Jefferson was sentenced to 32 years behind bars for the 1985 murder of Roger Dean after DNA evidence linked him to the crime.

In a home invasion, Jefferson held Dean at gunpoint, demanding money before shooting and killing him.

Detectives used advancements in DNA technology to match Jefferson's DNA to evidence left at the crime scene.

Jefferson was arrested in Los Angeles and extradited back to Colorado where he faced charges of first-degree murder and kidnapping.

The case is also linked to Yvonne "Missy" Woods, a former DNA scientist for the CBI who manipulated data in over 1,000 cases.

Jeanette Bartlett fondly recalls her sister Patty, a talented photographer who was tragically murdered at the age of 17.

Patty's love for photography began in high school, where she excelled and received a scholarship for further study.

In 1975, she was brutally attacked in a mall parking lot, ultimately losing her life.

Despite thorough investigations, the case remains unsolved.

Patty's family and authorities are hopeful that continued public attention may lead to a breakthrough.

Although the culprit may never face justice, Patty's loved ones seek closure and answers.

Anyone with information is encouraged to come forward.

Lois McMillen was found dead in Tortola in January 2000, and four American tourists were charged with her murder. The judge dismissed charges against all but William Labrador, who was convicted and sentenced to life, despite his mother’s claims of rushed judgment.