The ABC News primetime news magazine 20/20 has distinguished itself as one of the most esteemed programs in broadcast journalism. Celebrating its 36th anniversary this season, 20/20 continues to combine hard-hitting investigative reports, newsmaker interviews and compelling human interest and feature stories. The program is anchored by award-winning journalists Elizabeth Vargas and David Muir. For over three decades 20/20 has offered viewers reports and stories that have changed lives.
During the 1970s, the notorious serial killer had murdered dozens of women on a rampage that took him across the Pacific Northwest and eventually to Florida.
When Stacey Castor's second husband dies suddenly, investigators learn her first husband is also dead. Castor is suspected of murdering her second husband and poisoning her own daughter.