20/20

Season 48 Episode 16: File M for Murder

When an insurance agent is murdered in his office, evidence points to a secret relationship, until new DNA technology helps authorities find the real killer.

Genre:

News, Documentary

Seasons:

28

Episodes:

749

Cast:

David Muir, Deborah Roberts

Quality:

HD

Duration:

80 min

First Air:

1978

Rating:

6.3