In her gripping true-crime release, “Swans Don’t Swim in a Sewer,” renowned CSI Sheryl McCollum exposes a shocking landmark case, detailing how she formed an unlikely prison alliance with serial killer Carl Patton to hunt down his daughter’s murderer.
In 2003, Patton was sentenced to life in prison for murdering five people. He became known as the notorious “The Flint River Killer,” after four of the victims were found in the river, near the border of Clayton and Fayette counties.
His wife, Norma, agreed to testify against him and admit that she helped him dispose of the bodies, with the condition that investigators help find her daughter, Melissa Wolfenbarger, who had been missing since 1998.
In 1999, Melissa’s skull was found in a black trash bag behind the office of her husband Christopher Wolfenbarger’s former employer.
Decades later, the case, largely circumstantial, remained unsolved.
In 2017, during a fundraiser event hosted by McCollum and her non-profit cold case organization, Norma approached her with a photo of Melissa.
“This is my daughter, Melissa. She was beheaded in Atlanta. Can you help me?”
McCollum, an Emmy-award winning investigator known for collaborating with “Crime Stories” host Nancy Grace and working on high-profile cases, such as Natalee Holloway and Tupac Shakur, agreed.
In 2021, she began correspondence with Carl Patton as he served a life sentence in Georgia’s Dodge State Prison.
Patton’s letters offered McCollum a unique perspective into the lives of Melissa and Christopher, including domestic abuse issues, restraining orders, and familial isolation.
Patton also provided his own knowledge about disposing of victims and hiding evidence, but insisted he loved his daughter and wanted nothing more than to capture her killer.
Systemic biases surrounding Melissa’s socio-economic status and turbulent domestic life prompted authorities to prematurely classify her disappearance as voluntary. Christopher even suggested Melissa had fled to California, leaving her two young children behind.
Matters became more complicated given delayed search warrants and a theory that Melissa’s own parents, given their background, killed her and disposed of her body.
“Should the sins of a father- or mother- influence how Melissa’s case was handled?” McCollum asked. “Absolutely not. In my business, a victim is a victim.”
While McCollum’s multi-year investigation helped secured an arrest, the “not guilty” verdict in Christopher Wolfenbarger’s 2025 trial delivered a devastating blow to Melissa’s family.
“Swans Don’t Swim in a Sewer” is an inimitable look at a case that went overlooked and under-investigated, with lost video evidence, a missing police report, and a medical examiner initially labeling Melissa’s skull as a male.
It’s now available online and through major book retailers nationwide. A book launch and signing is scheduled on May 16, at The Plaza Arts Center in Eatonton, Georgia, at 6:30 p.m.
For a comprehensive companion to the book, listen to McCollum’s multi-part series on the “Zone 7” podcast.
[Featured image: Melissa Wolfenbarger/Handout]
