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David Xu Convicted of Poisoning Co-Worker in Berkeley Case

David Xu Convicted of Poisoning Co-Worker in Berkeley Case

First seen 12 Oct 2026, 18:30 UTC •

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ThreatCluster AI
ThreatCluster •October 12, 2026 at 21:31 UTC
  • •David Xu was convicted of poisoning a co-worker with cadmium.
  • •The poisoning was captured on hidden camera footage.
  • •Xu is currently seeking to have his felony conviction dismissed.

David Xu, a former chemical engineer, was convicted of poisoning a colleague with cadmium at a Berkeley engineering firm. The poisoning incident, which occurred between 2017 and 2019, involved Xu tampering with the victim's water bottle, as captured by hidden camera footage. The victim experienced severe health issues, including a heart attack, due to prolonged exposure to the toxic metal. Xu was sentenced to probation after accepting a plea deal, avoiding a potential life sentence. He is now seeking to have his conviction dismissed in court. The case has drawn significant media attention due to its shocking nature and the severity of the poisoning.

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Timeline

2017-10-01
Poisoning began
The victim started experiencing health issues attributed to poisoning, which continued until February 2019.
Berkeley Scanner
2019-02-01
Poisoning discovered
The victim used a spy camera to catch Xu tampering with her water bottle.
ABC7 News
2026-03-15
Xu sentenced
David Xu was sentenced to probation after accepting a plea deal for poisoning charges.
Berkeley Scanner
2026-10-12
Conviction dismissal hearing
David Xu is set to appear in court to request the dismissal of his felony conviction.
ABC7 News

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Common questions

What was the method of poisoning?
David Xu poisoned his co-worker by tampering with her water bottle, introducing cadmium, a toxic heavy metal.
What is the current status of David Xu?
David Xu has been sentenced to probation and is seeking to have his felony conviction dismissed in court.
What health issues did the victim experience?
The victim suffered from severe health problems, including lightheadedness, liver pain, and a heart attack attributed to the poisoning.