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Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
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Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
08:18

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Published on: June 12, 2016

Homicide by methane gas.

Fabio De-Giorgio1, Vincenzo M Grassi, Giuseppe Vetrugno

  • 1Institute of Legal Medicine, Catholic University, Medical School, Rome, Italy. fabio.degiorgio@rm.unicatt.it

Forensic Science International
|June 23, 2012
PubMed
Summary
This summary is machine-generated.

Methane gas can cause suffocation deaths. This case study details a rare instance of homicide using methane, where a husband murdered his wife and faked his own suicide.

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Area of Science:

  • Forensic Pathology
  • Toxicology
  • Criminalistics

Background:

  • Methane is a colorless, odorless gas primarily known for its role in asphyxiation deaths due to simple asphyxiation (gas-air displacement).
  • While accidental or environmental exposure is common, methane is rarely employed as a method for homicide.
  • This abstract explores a unique case deviating from typical methane-related fatalities.

Observation:

  • A 53-year-old woman was found deceased in her apartment.
  • Evidence indicated the administration of Lorazepam prior to the fatal event.
  • Methane gas was introduced into the bedroom via a hose connected to the kitchen supply.

Findings:

  • The husband intentionally administered Lorazepam to his wife, incapacitating her.
  • He then used a hose to introduce methane gas into the bedroom, causing her death by asphyxiation.
  • The perpetrator subsequently staged his own suicide to conceal the homicide.

Implications:

  • This case highlights the potential for methane gas to be used as a weapon in homicides, albeit uncommon.
  • It underscores the importance of thorough forensic investigation in suspected asphyxiation deaths, especially when staged suicides are involved.
  • The findings contribute to the understanding of unusual forensic cases and the methods employed in criminal acts.