"Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day.
Amateur internet investigators, new DNA technology and a dogged investigator help police find a killer - and identify a victim for years known only as "Lavender Doe." Keith Morrison reports.
S29E38 41 min