Dateline: Secrets Uncovered season 9 episode 21

Air Date: 2020-09-04

Duration: 43 min

Genre: Crime   Documentary

Vendetta

Beloved by his colleagues, Mark Hasse was a fearless prosecutor. He worked to put criminals behind bars and making enemies was a hazard of the job. He didn’t know it, but a killer was lurking and Mark wasn’t the only target.