48 Hours
48 Hours
January 16, 2026

The Gaslighting of Hannah Pettey | Full Episode

Quick Read

Hannah Pettey's mysterious, debilitating illness was ultimately revealed to be deliberate lead poisoning by her chiropractor husband, Brian Mann, who sought to collect on multiple life insurance policies.
Hannah Pettey suffered severe lead poisoning, nearly dying, caused by her husband Brian Mann.
Brian, a chiropractor, systematically administered lead via capsules, motivated by over $5 million in life insurance.
Despite initial lack of direct evidence and Hannah's initial denial, a contractor's tip linked Brian to the lead, leading to his conviction.

Summary

Hannah Pettey experienced a severe, unexplained illness starting in August 2021, leading to extreme weight loss, seizures, and near-fatal organ failure. Doctors at UAB Hospital discovered she had astronomical levels of lead in her system, concluding it was deliberate poisoning. Initial suspicions fell on both Hannah's mother, Nicole, and her husband, Brian Mann. Brian, a chiropractor, was accused of slowly poisoning Hannah with lead-filled capsules, a theory supported by Hannah's recollection of him insisting she take daily supplements. Despite initial lack of physical evidence and Hannah's reluctance to believe her husband was responsible, the investigation uncovered Brian's attempts to take out over $5 million in life insurance policies on Hannah. A contractor's tip about Brian ordering lead for his X-ray room provided the 'murder weapon' link. Brian Mann was convicted of attempted murder in June 2025 and sentenced to life in prison, while Hannah recovered and rebuilt her life.
This case exposes the insidious nature of domestic violence, where abuse can manifest as slow, deliberate poisoning, often masked by a perpetrator's perceived care. It highlights the psychological manipulation (gaslighting) that can make victims doubt their own reality and the warnings of others, and underscores the importance of persistent investigation and support systems in uncovering hidden abuse.

Takeaways

  • Hannah Pettey fell critically ill in late 2021, suffering severe abdominal pain, nausea, extreme weight loss, and seizures, eventually leading to a medical coma.
  • Doctors at UAB Hospital diagnosed Hannah with 'astronomical' lead poisoning, stating it was deliberate and an attempted murder.
  • Both Hannah's mother, Nicole, and husband, Brian Mann, were initially considered suspects and barred from seeing Hannah.
  • Hannah recalled Brian, a chiropractor, insisting she take daily supplement capsules, which prosecutors theorized were filled with lead shavings.
  • Brian Mann attempted to take out over $5 million in life insurance policies on Hannah while she was critically ill, establishing a clear financial motive.
  • A contractor, Danny Hill, informed police that he had installed soft, malleable lead lining in Brian's chiropractic office X-ray room, and Brian kept the leftover lead.
  • Brian Mann was convicted of attempted murder in June 2025 and sentenced to life in prison in August 2025.
  • Hannah Pettey, despite initial fears of permanent brain damage, recovered, graduated college, and became a teacher.

Insights

1Unexplained Illness Revealed as Deliberate Lead Poisoning

Hannah Pettey's severe, prolonged illness, characterized by extreme pain, weight loss, and seizures, was diagnosed as lead poisoning. Doctors found 'astronomical' levels of lead, particularly in her colon and bones, concluding it could not have been accidental and was an attempted murder.

Hannah's symptoms escalated from August 2021 to January 2022, leading to hospitalization where she was found to have 'almost 100% lead' in her colon and lead 'everywhere' in her body. Doctors explicitly told Nicole Pettey, 'this is an attempted murder.'

2Husband's Life Insurance Policies as Primary Motive

A key piece of evidence linking Brian Mann to the crime was the discovery of multiple life insurance policies he had taken out on Hannah. He even attempted to secure additional policies while she was critically ill, which would have totaled over $5 million upon her death.

Hannah informed McDearmond that Brian had taken out life insurance policies on her while they were dating. McDearmond learned Brian tried to take out more policies during Hannah's hospitalization, which would have paid over $5 million upon her death. McDearmond stated, 'Money's a motive. Money's a huge motive.'

3The 'Murder Weapon' Identified Through Contractor's Tip

Initially, police found no lead in Brian's home or office. However, a contractor, Danny Hill, recognized Brian from news reports and revealed he had installed soft, malleable lead lining in Brian's chiropractic X-ray room and Brian kept the leftover material. This provided the crucial link to the source of the lead.

Danny Hill, a contractor, contacted police after seeing Brian's arrest in the newspaper. Hill stated Brian asked him to line his X-ray room with soft lead, and Brian kept the remaining lead. Danny demonstrated how easily the lead could be shaved into particles and put into capsules. Police subsequently obtained a search warrant and recovered thin lead from Brian's office.

4Victim's Initial Denial and Gaslighting by Perpetrator

Despite overwhelming medical evidence, Hannah initially struggled to believe her husband was capable of poisoning her, even attempting to drop the divorce and investigation. This illustrates the powerful psychological manipulation often present in domestic abuse, where victims defend their abusers.

After discharge, Hannah met Brian, expecting him to deny the accusations vehemently. She then told her attorney she didn't want to proceed with the divorce, believing 'there must be something else.' She asked McDearmond to drop the investigation, stating, 'he's a family man. I said he loves me. He loves the kids. It just doesn't make sense.' McDearmond noted this as 'typical of domestic violence to forgive your abuser.'

Lessons

  • Recognize the signs of coercive control and medical abuse, even when masked by a partner's apparent concern or 'sweetness'.
  • Trust your instincts and the concerns of loved ones, especially when a partner isolates you from family or dismisses your health issues.
  • Understand that victims of domestic abuse may initially defend their abuser due to psychological manipulation; support systems should persist in offering help and information.
  • Be aware of unusual financial activities, such as new or increased life insurance policies, particularly if they coincide with a partner's declining health.

Notable Moments

Hannah's terrifying seizure in the emergency room after being initially dismissed by hospital staff, which ultimately led to her admission and life-saving care.

This critical event forced the hospital to admit Hannah, preventing her imminent death and initiating the medical investigation that uncovered the lead poisoning.

A doctor's angry confrontation with Nicole, Hannah's mother, questioning why someone hadn't intervened sooner, highlighting the severity of Hannah's neglect and the potential for medical professionals to identify abuse.

This moment underscored the dire state Hannah was in and implicitly raised questions about the care she received at home, shifting focus towards her living situation.

Hannah's initial decision to drop the divorce and criminal investigation against Brian, believing his innocence despite medical evidence.

This illustrates the profound psychological impact of gaslighting and abuse, where victims can be manipulated into defending their abuser, even when their life was at stake.

Lieutenant McDearmond's prepared form for Hannah to sign, acknowledging she didn't want to pursue the case, which she ultimately refused.

This moment served as a turning point, forcing Hannah to confront the potential consequences of dropping the case and solidifying her decision to cooperate with the investigation.

Quotes

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"I don't think it's an overstatement to say hours, maybe days."

Unidentified medical professional (referring to how close Hannah was to dying)
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"She has an astronomical amount of lead inside of her."

Hannah's neurologist
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"They let me know that this is an attempted murder."

Nicole Pettey
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"It's always necessary to put your murder weapon into the hands of a defendant."

Garrick Vickery (Prosecutor)
"

"The arrogance it takes to essentially watch somebody waste away, and then not only watch during the poisoning, but also watch during the downfall. I think that takes a very special person."

Jeff Solee (Juror)
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"No. I truly don't think that he did. I just don't think any of it was real."

Hannah Pettey (on whether Brian ever loved her)

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