Margaret Press, co-founder of DNA Doe Project, spoke with A&E True Crime about how investigative genetic genealogy helped identify Francis Wayne Alexander as Victim No. 5 of serial killer John Wayne Gacy.
On January 13, 1992, the serial killer changed his plea from not guilty to guilty but insane, which removed the need for a criminal trial and forced the verdict to be based on the jury's decision of his mental state.
According to testimony from friends and family, victims of the "Killer Clown" shared some surprising common connections and tragedies in their lives.
In 1999, Cary Stayner, brother of high-profile abduction victim, Steven Stayner, murdered four females at Yosemite National Park. Where is he today?
Between 2007 and 2009, Anthony Sowell, a former U.S. Marine and convicted sex offender who had served 15 years in prison, murdered 11 women and hid their remains inside his Cleveland home.
In 1996 serial killer Ivan Milat received life sentences for the murders of seven missing backpackers found dead in Australia's Belanglo State Forest. Over a decade later, his great-nephew committed a murder and credited it to his family name.
Dive into the psychology of the life and crimes of Ted Bundy, Jeffrey Dahmer, John Wayne Gacy, Gary Ridgway (The Green River Killer) and Dennis Rader (BTK).
Criminologist Dr. Scott Bonn deconstructs Dennis Rader's 'Factor X', the blamed culprit for why a devout Lutheran and father was driven to commit 10 murders between 1974 to 1991.
Timothy Krajcir, a serial killer responsible for nine murders, stumped investigators for nearly 25 years while killing multiple women in Missouri, Illinois and Pennsylvania.
Last words are part of a long practice in the United States, allowing the condemned a final opportunity to express themselves or ask for forgiveness.