Technology
Your DNA could transfer to a weapon you have never touched
Forensic scientist Niamh Nic Daeid explains how your DNA could end up on a murder weapon and why smoke alarms don't wake children
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Forensic scientist Niamh Nic Daeid explains how your DNA could end up on a murder weapon and why smoke alarms don't wake children
A serial killer active in California decades ago may finally have been identified using genetic sequences the suspect’s distant relatives gave to a website