All-New Dateline’s “And Then There Were Three” Airs Monday, September 14 at 10 p.m./9 p.m. CT
THE STORY: Just days before Christmas, high school senior Michelle Martinko is found stabbed to death in her car after visiting the mall. It would take almost 40 years for investigators to identify the killer – and when they did, Martinko’s family and friends were stunned.
REPORTED BY: Dennis Murphy
INTERVIEWS WITH: Michelle’s friends Curt Thomas and Jane Hansen, Michelle’s sister and brother-in-law Janelle and John Stonebraker and more.
WHERE: Cedar Rapids, Iowa
is the longest-running series in NBC primetime history and is in its 28th season. is anchored by Lester Holt and features correspondents Andrea Canning, Josh Mankiewicz, Keith Morrison and Dennis Murphy. Airing Fridays at 10 p.m. ET/9 p.m. CT and Mondays at 10 p.m. ET/9p.m. CT, 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. Additionally, closed out 2019 as the #1 Friday newsmagazine across the board. David Corvo is the senior executive producer, and Liz Cole is the executive producer.