Postmortem.

What survives the John Wayne Gacy Murders by Courtney Lund O’Neil

Many thanks to Kensington Publishing and Penguin Random House for the ARC copy of this book for my unbiased review.

When the mother of the author of this book, Kim Byers, was in her teens she worked at a local drugstore in her hometown in Illinois. One of the young men who also worked in the store was a friend of hers who she sometimes hung out with when they weren’t at work. His name was Rob Piest.

One fateful night in December 1978, while they were at work, Kim was cold as she was working near the door and each time a customer came in, the chill wind made her shiver. Rob was kind enough to lend her his jacket.

When there was a lull in shoppers, Kim took the opportunity to put in the roll of film she took recently to be developed. She tucked the stub into the pocket of the borrowed jacket.

At some point in the evening, a contractor, a Mr. Gacy, who was measuring for a renovation to the store had a conversation with Rob about working for him for higher pay.

Rob wasn’t old enough to drive so his mother usually picked him up when his shift was over.

Rob got his jacket back from Kim and told her he was going out the back door to talk further with the contractor.

When he didn’t return, both Kim and his mother, who had arrived to take Rob home, became worried.

Unfortunately, Rob was never seen alive again. Kim’s receipt in his jacket pocket would lead to the end of John Wayne Gacy’s reign of terror and the discovery of the numerous young men buried under his house. Sadly, it was too late for Rob.

This meticulously researched book focuses on the aftermath of that night in December and all the ripples through time in a number of families due to the actions of the monster that was John Wayne Gacy.

This book is important as it doesn’t glorify Gacy and shows the reader the very real effect such encounters have in the lives of the survivors as well as the families they eventually create for themselves. The Postmortem of the title refers to the aftermath of violence on everyone touched by it.

The author is in a very unique position as she sees first-hand how her mother’s entire life has been affected by her friendship with Rob and her unintentional role in helping to bring down a serial killer.

Kim was a brave young woman to come forward and to testify in Gacy’s trial, but it affected her and her belief in personal safety, which also affected her children. She made a good life for herself, but she has definitely held on to some of the trauma of the days, weeks, and months after the incidents occurred.

This book is well worth a read as it deals with psychological trauma and how that can actually be passed on to the next generation without meaning to be.

I learned a lot about generational trauma in this book as the oldest daughter of Kim, Courtney Lund O’Neil, the author of this book shared her insights as well as information on her mother’s experiences in bringing down a serial killer. 

BLURB:

On a December night in 1978, Courtney Lund O’Neil’s mother, teenaged Kim Byers, saw her friend Rob Piest alive for the last time. At the end of his shift at the pharmacy where they both worked, fifteen-year-old Rob went outside to speak to a contractor named John Wayne Gacy about a possible job.

That night Rob became Gacy’s final victim; his body was later found in the Des Plaines River. Kim’s testimony, along with a receipt belonging to her found in Gacy’s house, proving that Rob had been there, would be pivotal in convicting the serial killer who assaulted and killed over thirty young men and boys.

Though she grew up far from Des Plaines, Courtney has lived in the shadow of that nightmare, keenly aware of its impact on her mother. In search of deeper understanding and closure, Courtney and Kim travel back to Illinois. Postmortem transforms their personal journey into a powerful exploration of the ever-widening ripples generated by Gacy’s crimes. From the 1970s to the present day, his shadow extends beyond the victims’ families and friends—it encompasses the Des Plaines neighborhood forever marked by his horrific murders, generations of the victims’ families and friends, those who helped arrest and convict him, fandom communities, and many others.

Layered and thought-provoking, Postmortem is a complex story of loss and violence, grief and guilt, and the legacy that remains long after a killer is caught.