Investigators track the suspect’s backpack, mask, and clothing through retail and online records to uncover leads in Nancy Guthrie’s case ...

Blood droplets at Nancy Guthrie's Tucson home suggest abduction, forensic pathologist Dr. Michael Baden tells investigators ...

FBI video forensics experts bring specialized equipment to missing Arizona woman Nancy Guthrie's home as intensive search ...

Image courtesy by QUE.com When a former FBI agent describes a criminal case as a rare outlier, it signals something unusual: ...

Forensic analysis reveals human remains on sawzall blade; suspect’s phone shows suspicious searches ...