Law enforcement investigating Tammy Zywicki’s murder spent decades looking into known and suspected serial killers operating in the Midwest. Among them was Larry Dwayne Hall, who authorities have long suspected may be responsible for kidnapping and murdering more than 50 women in the '80s and early '90s. Was Tammy one of them?See omnystudio.com/listener for privacy information.

Tammy Zywicki was more than just a headline. In this bonus episode, hear friends and loved ones share their favorite memories of the playful, strong-willed soccer player who was obsessed with cats and knew how to break the ice.See omnystudio.com/listener for privacy information.

A bombshell revelation upends long held speculation about Tammy’s killer, as the most promising suspect yet is revealed. Phelps discusses everything he’s learned about Tammy’s case thus far, and explains why an arrest could be imminent. Plus, Tammy’s friends and loved ones reflect on the  significance of 30 years after her murder, and share what they think she’d be doing today.See omnystudio.com/listener for privacy information.

Investigators working Tammy’s case take a big risk in an effort to match her killer’s DNA. Phelps and former Master Sergeant Marty McCarthy have a heated conversation about the issues with his prime suspect, as a former detective comes forward with a troubling new claim. See omnystudio.com/listener for privacy information.

Tammy’s case gets a second look from a seasoned group of exclusive investigators, who cast doubt on several core theories and point the Illinois State Police in a new direction. Phelps digs further into two key suspects, and pushes law enforcement on why they didn’t do more to exonerate an innocent man. See omnystudio.com/listener for privacy information.

A bold claim about a missing musical watch pits law enforcement against one another, as the ISP doubles down on its search for a truck-driving serial killer. Then, Phelps digs in and examines a lead from the earliest days of the investigation, hoping to discover why a key suspect was never arrested or charged.See omnystudio.com/listener for privacy information.

Details begin to emerge about Tammy’s cause of death, including how long she was on the roadside before her body was discovered. Then, Phelps travels to Missouri to connect with the man who found Tammy’s body.See omnystudio.com/listener for privacy information.

A gruesome discovery in Missouri shakes Tammy’s loved ones to their core, as Phelps uncovers a decades-old eyewitness statement that changes the course of his investigation.See omnystudio.com/listener for privacy information.

It was late summer 1992, and Tammy Jo Zywicki was driving from suburban New Jersey to Grinnell College in Iowa. But what started as a routine trip took a mysterious turn when the 21-year-old’s car was found abandoned on the side of a busy highway. As a massive search effort for the college student gets underway, Tammy’s loved ones are left wondering about her fate: Where is she? What happened to Tammy Jo Zywicki? See omnystudio.com/listener for privacy information.

When a young college student’s car was abandoned on the side of a busy midwest highway in 1992, police figured it was a runaway case. Nine days later, she was found brutally murdered, nearly 500 miles away in another state. What happened to Tammy Jo Zywicki? Hear the story when PAPER GHOSTS returns with a new season on February 1.See omnystudio.com/listener for privacy information.