Illinois 1979 Cold Case Solved — A Wet Vacuum Found His DNA 44 Years Later

Added: 2026-05-05

[00:00:00]There is a particular kind of killer that investigators find the hardest to catch.

[00:00:04]Not the disorganized one who leaves a trail. Not the one who knew the victim.

[00:00:09]The one who moves sideways through a community, hunts casually, leaves nothing behind that points to a name, operates with the confidence of someone who has done this before and simply walked away.

[00:00:21]Bruce Lindahl was that kind of killer.

[00:00:24]And for 45 years, Kathy Hall's family lived inside the wreckage he left behind without ever knowing his name.

[00:00:30]March 29th, 1979.

[00:00:33]North Aurora, Illinois. A cold, rainy Friday evening on the suburban edge of Chicago.

[00:00:40]Kathy Hall was 19 years old. She pulled on a white ski jacket and left her apartment on Volks Court. She was driving to the Northgate Shopping Center on North Lake Street to pick up her sister, who was finishing a shift. A short drive, a route she knew. She left the parking lot, and then the record of her movements simply stops. Her body was found 26 days later, floating in the Fox River by a 12-year-old boy who had gone out fishing.

[00:01:07]By the time investigators closed the case in October of 2024, DNA recovered from Kathy's clothing, clothing that had been submerged in a river for weeks in 1979, had been matched to a man who had been dead for over 40 years. The number the lab produced, 9.4 trillion to 1. Kathy Hall was 19, living on her own, working at the shopping center. Her family described her as incredibly sweet. In the photographs that survived, she looks exactly like 1979.

[00:01:38]Bright eyes behind glasses, feathered hair, overalls.

[00:01:42]A young woman pointed toward everything that comes after 19.

[00:01:46]North Aurora was a small village then, not [clears throat] the kind of place that generated violent crime. The community president, who would stand at a press conference 45 years later, remembered being the same age as Kathy and recalled her disappearance as something genuinely frightening.

[00:02:03]The kind of event that did not happen there.

[00:02:05]But it did. The evening of March 29th had been cold and raining steadily.

[00:02:10]Kathy left to get her sister. The drive was routine. At some point during that drive, investigators would later conclude in the parking lot of her own apartment complex, before she even made it to her car, she encountered a man who knew that area, who knew the shopping center, who had already spent years operating in the same geography as everyone Kathy Hall had ever known. She never reached the shopping center. Her sister waited for a ride that never came. When Kathy didn't arrive, her sister found her own way home. When Kathy didn't return to the apartment, the alarm was raised. Her car was later found back at the complex parking lot, but not where she had left it.

[00:02:50]Inside, on a mat in the back seat, investigators found a pool of blood. The car had been moved. The blood told them that whatever had happened to Kathy Hall had happened right there, at the place she was supposed to be safest. For 3 weeks, the case was a missing person's investigation.

[00:03:08]3 weeks is a long time to search for a 19-year-old who had no reason to disappear.

[00:03:14]On April 24th, 1979, a 12-year-old boy was fishing along the Fox River when he saw something in the water.

[00:03:21]The body of Kathy Hall was recovered south of the I-88 bridge in North Aurora.

[00:03:26]She had been in the water for weeks. Her white ski jacket was still on her body.

[00:03:31]And then someone in 1979, without any concept of what DNA evidence was or would become, packaged that clothing and placed it into evidence storage in exactly the right way.

[00:03:43]Kane County State's Attorney Jamie Mosser would say 45 years later that it was almost a miracle. The clothing held.

[00:03:51]The evidence held. The answer was inside it the entire time, waiting for a machine that would not be invented for another four decades. The investigation that followed produced no arrest, no identified suspect, no direction.

[00:04:06]Investigators worked the case through 1979 and into the 1980s.

[00:04:11]They were thorough. They were persistent. They found nothing. What they did not know, what no one in law enforcement across DuPage, Kane, and surrounding counties had yet assembled into a single picture, was that a specific man had been operating throughout the same geography for years. He had raped women in Aurora.

[00:04:31]He had abducted women from the same shopping center district. He had been arrested. He had been charged. He had been released every time before the system could connect what he had done in one location to what was being investigated in another.

[00:04:46]His name was Bruce Lindahl. He was 26 years old when Kathy Hall disappeared.

[00:04:51]By the early 1980s, the Hall case had gone cold. The file remained open, but the energy behind it diminished. In the early 2000s, North Aurora detectives took what DNA material they had and submitted it to the Illinois State Police Laboratory.

[00:05:06]The results came back.

[00:05:08]Nothing matched. The case returned to storage. The Fox River kept moving. And Bruce Lindahl, who had been dead since April 1981, continued to carry a secret that no forensic technology yet available could extract from a piece of wet clothing.

[00:05:23]Bruce Everett Lindahl was born in 1953 in the Chicago area.

[00:05:28]Between 1974 and 1981, he committed a sustained campaign of sexual violence across the western suburbs. He is now believed to have been responsible for at least 12 murders and nine rapes.

[00:05:41]In 1979, he was 26, living in Aurora, moving between addresses, cycling through the criminal court system without ever being held long enough for anyone to see the full shape of what he was doing. His pattern was consistent.

[00:05:56]He targeted young women in public spaces, shopping center parking lots, streets near apartment complexes. He knew the geography of the western suburbs with a familiarity of someone who had lived in it for years.

[00:06:09]Individual police departments in individual jurisdictions each saw one piece. None of them saw all of it at once. 23 days before Kathy Hall disappeared on March the 6th, 1979, Lindahl raped a 20-year-old woman named Annette Lazar in his Aurora home. He held a 9-mm handgun to her head. She managed to leave and went directly to the police. Her report was effectively discounted. No charges were filed.

[00:06:35]3 weeks later, Kathy Hall left her apartment parking lot for the last time.

[00:06:39]In June of 1980, Lindahl abducted 25-year-old Deborah Colliander from the parking lot of the Northgate Shopping Center, the same shopping center Kathy Hall had been driving toward. He took Colliander to his apartment and raped her. She escaped when he fell asleep.

[00:06:55]This time, Lindahl was charged. He posted bail. The case was set for trial in 1981. Before that trial could take place, Deborah Colliander disappeared.

[00:07:05]Her decomposed remains were found in an Oswego cornfield in 1982.

[00:07:10]A man later contacted police and said Lindahl had offered him money to kill Colliander before she could testify.

[00:07:16]By then, Lindahl was already dead.

[00:07:19]On April 4th, 1981, Lindahl met an 18-year-old named Charles Huber Jr. in Naperville.

[00:07:26]During a struggle, Lindahl accidentally severed a major artery in his own leg with a knife he was using to stab Huber.

[00:07:33]He bled to death at the scene. He was 28 years old. His apartment, when investigators entered it, contained photographs of young girls, including one believed to be 16-year-old Debra McCall, who had gone missing from Downers Grove in 1979 and has never been found.

[00:07:49]The break that would eventually reach Kathy Hall's case did not begin with Kathy Hall. It began with Pamela Maurer.

[00:07:56]16 years old, January 12th, 1976.

[00:08:01]She left a friend's house in Lisle, walked to a nearby McDonald's and buy a soda.

[00:08:06]She did not come back. Her body was found the next day. She had been raped and strangled. The case went cold for over four decades.

[00:08:14]In 2019, the Lisle Police Department reopened the Maurer case using forensic genetic genealogy.

[00:08:21]What came back pointed toward the family of Bruce Lindahl. Investigators exhumed Lindahl's body. His DNA was compared directly to the biological material found on Pamela Maurer. In January 2020, the DuPage County State's Attorney confirmed the match. Bruce Lindahl had killed Pamela Maurer in 1976.

[00:08:40]And in closing that case, a message went out to every department in the western suburbs. Every open case from that era needed to be re-examined through the lens of what Lindahl had been doing.

[00:08:51]North Aurora detectives working Kathy Hall's file received that message and acted immediately. They pulled the evidence. They brought it in for examination. The DuPage County Forensics Laboratory identified a mixture of two individuals' DNA on the clothing, but the sample was too degraded for any usable profile. It was progress that had produced a wall. The wall was not permanent, but no one yet knew what tool would get through it.

[00:09:15]In 2022, Detective Ryan Pete of the North Aurora Police Department attended a regional law enforcement training conference.

[00:09:24]He had been working the Hall case for years. It was a case that his mentors and the officers who had come before him had carried for decades without resolution.

[00:09:33]At that conference, he heard about a technology called the M-Vac system. The M-Vac works in a manner that conventional DNA swabbing cannot replicate. It sprays a buffered solution directly onto porous material, fabric, clothing. The solution penetrates into the fibers, reaching biological material that a surface swab would never contact.

[00:09:54]Then, like a scientific wet-dry vacuum, it draws that solution back out through suction.

[00:10:00]For evidence that has been water damaged, degraded, or subjected to decades of storage, the M-Vac reaches places that no previous method could access.

[00:10:09]Pete returned from the conference thinking about Kathy Hull's clothing.

[00:10:13]The evidence had been wet. It had been in the Fox River for nearly 4 weeks.

[00:10:17]Standard swabbing had failed in 2020.

[00:10:20]But the M-Vac did not swab the surface.

[00:10:22]It pulled from inside the material. The cost of the testing was $10,000.

[00:10:28]Pete applied for a grant from Season of Justice, a non-profit that funds DNA testing in cold cases. The grant was approved. In June of 2023, he personally drove the evidence from Kathy Hull's 1979 murder to DNA Labs International in Florida.

[00:10:45]DNA Labs International received Kathy Hull's clothing in June of 2023, 44 years after it had been pulled from the Fox River. Their scientists applied the M-Vac system to the garments. They extracted biological material from within the fibers, material that had survived river submersion, weeks of current, and 4 and 1/2 decades in an evidence room because the original investigators in 1979, without knowing anything about DNA, had packaged the clothing in precisely the right way. The material was there, locked inside the fabric, waiting.

[00:11:20]The laboratory processed the extracted material and developed a DNA profile.

[00:11:25]That profile was then compared directly against the DNA that had already been obtained from Bruce Lindahl's exhumed remains during the Pamela Moore investigation. The two profiles were placed side by side in August of 2024.

[00:11:38]The result came back to North Aurora with a number attached to it that required no interpretation, 9.4 trillion. The DNA recovered from Kathy Hull's clothing was 9.4 trillion times more probable to have originated from Bruce Lindahl than from any unrelated individual.

[00:11:55]That figure is not a probability estimate requiring courtroom argument.

[00:11:59]It is a statement of identity.

[00:12:02]Detective Ryan Peet, who had driven that evidence to Florida himself, reviewed the result and understood what it meant.

[00:12:08]He later said that all of his mentors coming up through the department had worked the Holly case, and he had been the one who got to type the words case closed.

[00:12:18]On October 23rd, 2024, North Aurora police held a press conference and announced that the murder of Kathy Hull had been solved. Bruce Lindahl cannot be prosecuted. He died on April 4th, 1981, before forensic DNA existed as a tool, before the women he had attacked knew what to call the thing that had happened to them.

[00:12:38]Kane County States Attorney Jamie Mosser stood at the press conference and stated clearly that had Lindahl been alive, first-degree murder charges would have been filed and the case would have proceeded to trial.

[00:12:50]The evidence left no room for another conclusion. The family of Kathy Hull did not speak publicly. They sent a written statement. In it, they said what 45 years of waiting produces when it ends not in a courtroom verdict, but in a laboratory result. Gratitude that the answer existed. Grief that the answer could not produce consequences. And a hope that other families would not have to carry uncertainty for as long as they had carried theirs.

[00:13:17]Lindahl is still considered a suspect in cases beyond the two now officially linked to his name.

[00:13:23]There are families in those suburbs who have been waiting longer than Kathy Hull's family waited.

[00:13:28]There are names in cold case files that may still be traceable to a man whose own DNA has been on record since 2019.

[00:13:36]And there is clothing sitting in evidence storage rooms across northeastern Illinois that the M-Vac system has not yet been pointed at.