Serial Killers

As seen in the Oxygen True Crime special "Serial Killer Capitol: Baton Rouge," multiple murderers were terrorizing the area in the same time period.

Fear filled a Louisana city as women were shot, stabbed, and strangled over the span of a decade.

Derrick Todd Lee, Sean Vincent Gillis, and Jeffery Lee Guillory all had one eerie trait in common.

Erika Peña testified about a harrowing encounter with suspected serial killer Juan David Ortiz, which played a key role in his arrest.

Director Jessica Dimmock told Oxygen.com that she wanted to create a "letter of appreciation" to the families of victims who were found in the Texas "Killing Fields."

Multiple murderers stalked the city of Baton Rouge at the same time, as seen in Oxygen's new special.

Suspected serial killer Billy Chemirmir is accused of murdering at least 22 elderly women between 2016 and 2018. Now, those left behind are working to make sure more protection can be provided for one of the fastest-growing demographics in America. 

Investigators Tim Braun and Danny Baldwin famously recruited nurse Amy Loughren to help them look into serial killer Charles Cullen after hospitals reported multiple suspicious deaths.

Police are investigating Lucy Studey's claims that her late father Donald Studey was a serial killer with up to 70 victims. Her older sister, Susan Studey, says it isn't true.

In 2003, nurse Amy Loughren worked with Somerset detectives to figure out if Charles Cullen was responsible for the deaths of numerous patients who died under mysterious circumstances.