Details emerge in case of Berkeley engineer accused of poisoning coworker's food
Berkeley police
David Xu

via KTLA

BERKELEY, Calif. (KTLA) -- A female engineer at a Bay Area consulting firm says she suffered months of “immediate and significant health problems” after consuming food and drinks she had left at work — and she believes they were poisoned by a colleague, according to police.

By reviewing surveillance video from inside her office at Berkeley Engineering and Research in Berkeley, California, Rong Yuan said she saw her co-worker, David Xu, spiking her water, according to the court documents.

Yuan has not responded to CNN requests for comment.

Xu, 34, was arrested on March 28 and has been charged with three felonies: premeditated attempted murder and two counts of poisoning with enhancement. The last two counts stem from suffering experienced by Yuan’s relatives, who drank from her water bottle after she brought it home from the office.

All three alleged victims’ blood samples contained elevated levels of cadmium, according to police.

Xu, also an engineer, pleaded not guilty to charges during a court appearance on Thursday.

“Mr. Xu is presumed innocent. That means despite the allegations, he is presumed innocent until proven guilty beyond a reasonable doubt by the government,” his lawyer, Julia Jayne, told CNN.

Yuan told Berkeley Police last month that she had been noticing “a strange taste or smell from her water and food left unattended in her office” on multiple occasions between October 2017 and last month. She said she suffered immediate health problems after consuming the items and at times had to visit the emergency room.

MORE: Details emerge in case of Berkeley engineer accused of poisoning coworker's food - KTLA

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