(NBC News) – Tonight, on an all-new “Dateline,” after 27-year-old Egypt Covington is found murdered in her home, investigators in Michigan quickly identify a person of interest, but years pass without an arrest.

Friday’s all-new “Dateline” examines the search for answers in this aspiring singer’s death and features Andrea Canning’s exclusive interviews with Egypt’s friends, as well as never-before-heard audio from the family’s private investigator.

Here is a preview of Canning’s report:

As investigators would learn, the circle of people who knew and loved Egypt was enormous.

LESLEY DIXON: She just was bigger than life. So many people loved her. She had a ton of best friends, she had a ton of acquaintances.

It was her brother D’Wayne who got Egypt into bartending. The siblings worked alongside each other.

ANDREA CANNING: So, you two were side by side.

D’WAYNE TURNER: We were.

ANDREA CANNING: Behind the bar…

D’WAYNE TURNER: Side by side.

ANDREA CANNING: I love that.

D’WAYNE TURNER: Yeah. It was pretty cool. It was, it was fun. We’d have our little routines that we would do. We’d have some, like…

ANDREA CANNING: Oh, like what?

D’WAYNE TURNER: Light shows, turn down the lights, have flaming bottles of liquor.

ANDREA CANNING: Wow.

She was great behind the bar, but Egypt had bigger plans, craft beer is a booming industry in Michigan, and Egypt landed a job with a distributor as a beer sales rep.

D’WAYNE TURNER: It was all coming together. she was taking off with the distribution. This was gonna be her career, alongside with trying to get into the music business.

Egypt’s talent and her gusto for life drew a lot of people to her. And that can sometimes make a murder investigation quite complicated.

D’WAYNE TURNER: Who is it? Could it have been somebody that was infatuated with her at the bar and followed her? It, it could’ve been anything. Is it a friend? Is it a family member? Who knows?

Watch “Dateline: The Wrong Door” tonight a 9 p.m. on NBC4.

About “Dateline”

“Dateline NBC” is the longest-running series in NBC primetime history and is in its 30th season. Dateline is anchored by Lester Holt and features correspondents Andrea Canning, Josh Mankiewicz, Natalie Morales, Keith Morrison and Dennis Murphy.

Dateline is the #1 Friday newsmagazine and reaches more than 17 million people every week through its broadcast, and millions more through its social media platforms and podcasts.

The stories range from compelling mysteries to powerful documentaries and in-depth investigations. When major news breaks, they go to the scene, putting the pieces together to bring the viewer the full picture. And in every story they tell, they help the real people who lived the events share their journeys with the viewer.

This past season, Dateline debuted two new podcasts, “Mommy Doomsday” and “Killer Role,” hosted by correspondent Keith Morrison.

In February, NBC also greenlit a straight-to-series inspired by the story featured in the Dateline podcast series, “The Thing About Pam.” Two-time Oscar-winning actress Renee Zellweger will star and executive produce the series, in collaboration with Blumhouse Television, NBC News Studios and Zellweger’s Big Picture Co.