Triple Homicide With Thallium Sulfate: Microscopic Postmortem Findings at Different Survival Time

Area of Science:

• Forensic Toxicology
• Histopathology
• Toxicology

Background:

• Thallium was a common rat poison but is now banned due to high toxicity.
• Homicidal thallium poisoning is rare, with limited understanding of its biological and histological manifestations.
• Existing literature lacks detailed information on the short- and medium-term effects of thallium poisoning.

Purpose of the Study:

• To investigate and document the microscopic evidence of homicidal thallium poisoning.
• To elucidate the gastrointestinal and systemic effects of thallium toxicity.
• To enhance the forensic understanding of thallium-induced lesions.

Main Methods:

• Analysis of a unique forensic case involving three victims of homicidal thallium poisoning with varying survival times.
• Microscopic examination of viscera to identify histological lesions.
• Documentation of findings with comprehensive iconography.

Main Results:

• Detailed microscopic pictures of thallium poisoning, including gastrointestinal transit signs and systemic effects.
• Identification of short- and medium-term histological changes induced by thallium.
• Evidence supporting the cause of death related to thallium toxicity in the affected organs.

Conclusions:

• The study provides crucial microscopic evidence for identifying thallium poisoning in forensic investigations.
• It expands knowledge on the currently unknown short- and medium-term effects of thallium toxicity.
• The findings aim to enrich the forensic literature on this rare but fatal poisoning.