Investigators said carbon monoxide from a cracked exhaust manifold killed 18-year-old Aubrie Morgan inside a running vehicle in a downtown parking structure.
ROYAL OAK, MI — An 18-year-old woman who was found unresponsive in her car inside a Royal Oak parking garage in January died from carbon monoxide poisoning after a crack in the vehicle’s exhaust manifold let fumes build up, according to family members and local reporting this week.
Aubrie Morgan’s death, first widely detailed in news reports on March 10, has turned a private loss into a public account of a hazard that is easy to miss because carbon monoxide has no color or smell. The case centers on a young driver on her way to cosmetology school, a mother who realized something was wrong when texts went unanswered, and an investigation that family members said eventually traced the death to a mechanical failure in the car. The immediate stakes are both personal and public: a family in mourning, and fresh scrutiny on how vehicle exhaust can become deadly in enclosed spaces.
Morgan, a Dearborn resident who had graduated from high school last summer, drove to Royal Oak on Jan. 14 through snowy conditions, her mother, Olivia Morgan, said in television interviews. She was headed toward cosmetology classes and was also near the restaurant where she worked, according to the family’s account. When hours passed without a reply from her daughter, Olivia Morgan said she grew alarmed because the silence was out of character. She used her phone to locate Aubrie’s device in a parking structure near the school and the restaurant. Olivia Morgan said she then called a manager at the restaurant and asked that someone check the car. At first, the manager believed Aubrie was asleep inside. When the door was opened, Olivia Morgan said, it became clear her daughter was not breathing, and a 911 call followed.
Emergency crews responded, but Morgan was pronounced dead, according to the family’s account. Olivia Morgan said the first fear was that her daughter had suffered a sudden medical emergency, possibly an aneurysm. The explanation changed after investigators examined the vehicle more closely. In the family’s telling, police later lifted the car on a hoist and found a small crack in the exhaust manifold. That defect, Olivia Morgan said, allowed carbon monoxide to enter the vehicle while the engine was running inside the garage. Local reports said people who passed by before the discovery believed the young woman was simply sleeping in the parked car. Authorities have not publicly released a detailed investigative narrative beyond what has been described through the family and local media, and it remains unclear how long the engine had been running, whether any warning signs were noticed before Morgan lost consciousness, or whether the leak had caused earlier symptoms on other trips.
The account has resonated in part because Morgan was 18 and had been moving into adult routines of school, work and commuting. Family members described her as warm, forgiving and quick to help others. Her obituary said she died Jan. 14 and identified her as Aubrie A. Morgan of Dearborn. In interviews, her mother recalled a daughter who loved field hockey and had recently committed herself to cosmetology training. Those details have shaped the public understanding of the case, turning it from a brief item about a death in a garage into the story of a teenager whose plans ended during an ordinary weekday drive. The setting also matters. Carbon monoxide from vehicles is especially dangerous in enclosed or partly enclosed spaces, and federal health agencies say even a small leak in a car’s exhaust system can allow the gas to build up inside the cabin. Because the gas is odorless and symptoms can resemble fatigue or illness, people may not realize what is happening until it is too late.
Federal public health data show that carbon monoxide poisoning remains a persistent cause of accidental death in the United States. The Centers for Disease Control and Prevention says more than 400 Americans die each year from unintentional carbon monoxide poisoning not linked to fires, while more than 100,000 visit emergency departments and more than 14,000 are hospitalized. The agency also warns that a small leak in a vehicle’s exhaust system can lead to a buildup of carbon monoxide inside the car. Another federal safety document has said motor vehicle exhaust accounts for a large share of non-fire carbon monoxide deaths. In metro Detroit, the danger has surfaced in other recent cases, including the deaths of two children in a van parked in a Detroit casino garage, where investigators also found a carbon monoxide leak. Morgan’s death now joins that grim pattern, though the circumstances were different: she was alone, in her own car, and apparently on a normal school-day trip when the toxic gas overcame her.
No criminal wrongdoing has been alleged in Morgan’s death, and the case appears to be treated as an accidental fatality tied to a mechanical problem. The key procedural step described so far was the vehicle inspection that family members said identified the cracked manifold. It is not clear whether Royal Oak police, the Oakland County medical examiner, or another agency plans to release a fuller report, and no court proceeding has been announced. For now, the public record is limited to the family’s account, the date and place of the death, and the mechanical explanation reported by local outlets. What comes next is likely to be less about prosecution than documentation: whether officials issue any formal findings, whether the family receives additional investigative records, and whether the case prompts wider discussion among mechanics, parking operators or local officials about detection and prevention. The next milestone, if it comes, would be any public release of a final investigative summary or medical examiner finding that lays out the sequence in greater detail.
Even in the fragments now public, the scene is stark. A snow-day drive ended in a quiet garage stall. A phone location pin sent a mother searching. A restaurant manager approached a car that seemed to hold a sleeping teenager and instead found an emergency. Olivia Morgan has spoken in blunt, grieving terms about the loss. Aubrie, she said, “constantly went out of her way for everybody,” and “forgiveness was huge in her heart.” Those memories have carried much of the story’s emotional weight because official voices have said little in public so far. The details that remain are simple and devastating: a recently graduated teen, a running car, an enclosed structure, a hairline failure in a metal part, and a gas no one can see. In the weeks since Jan. 14, Morgan’s family has shifted from shock to remembrance, trying to explain how a routine trip to school ended before anyone around her understood the danger inside the vehicle.
As of Wednesday, March 11, the case stood as a reported accidental carbon monoxide death involving Morgan’s car in a Royal Oak parking structure, with no charges announced and no broader official briefing yet made public. The next clear marker will be any formal investigative release that confirms the mechanical findings and closes the timeline.
Author note: Last updated March 11, 2026.