Poison is the subtlest murder weapon, and poisoners are sometimes the most brutal of killers, gaining their victims' trust and harming them over time to disguise the murder. Investigators must see through the unusual circumstances to bring...See morePoison is the subtlest murder weapon, and poisoners are sometimes the most brutal of killers, gaining their victims' trust and harming them over time to disguise the murder. Investigators must see through the unusual circumstances to bring these murders to light.
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