Chemical engineer accused of poisoning co-worker's food and drinks for 18 months

A water bottle on a desk.
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A 32-year-old chemical engineer in Berkeley, California, has been arrested on attempted murder charges, with authorities saying he spent the last 18 months slowly poisoning one of his co-workers.

David Xu was arrested Thursday and arraigned on Tuesday, charged with willful, deliberate, premeditated attempted murder, felony poisoning, and inflicting great bodily injury.

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Catherine Garcia, The Week US

Catherine Garcia has worked as a senior writer at The Week since 2014. Her writing and reporting have appeared in Entertainment Weekly, The New York Times, Wirecutter, NBC News and "The Book of Jezebel," among others. She's a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.