伯克利华人工程师投毒同事案新节点：法院10月12日批准撤销定罪 受害者公开当年监控视频抗议
伯克利（加州）——阿拉米达县高等法院10月12日批准撤销华人工程师徐某（David Xu）的重罪投毒定罪，检方对此表示反对，此案受害者、工程师荣媛（Rong Yuan）出席听证并表示反对。据多家媒体报道，荣媛自2017年起长期出现呕吐、脱发、反复进急诊等症状，其自行安装的摄像头拍到同在伯克利工程研究公司（Berkeley Engineering and Research）工作的徐某向其水瓶中投放物质，检测显示为重金属镉，浓度被报道最高达联邦饮用水限值的350万倍，荣媛的父母也曾检出镉中毒。
徐某2019年被控包括预谋杀人未遂在内的多项罪名，2023年对一项重罪投毒罪作不抗辩答辩，2024年被判两年缓刑、羁押折抵一天，并赔偿7,058美元；荣媛的索赔金额接近50万美元。徐某于2026年3月完成缓刑后申请撤销定罪。荣媛自10月10日起公开当年拍到的监控视频，并表示自己至今无法全职工作、认为原判处罚与所受伤害远不相称。需要说明的是，撤销定罪并不等同于相关记录完全消失。
Berkeley Engineer Poisoning Case: Court Expunges David Xu's Conviction on Oct. 12 as Victim Releases Surveillance Video
BERKELEY, Calif. — An Alameda County Superior Court judge on October 12 granted the expungement of engineer David Xu's felony poisoning conviction over the district attorney's objection, with the victim, engineer Rong Yuan, attending the hearing to oppose it. According to multiple reports, Yuan began suffering vomiting, hair loss and repeated emergency-room visits in 2017. A camera she installed captured Xu, a colleague at Berkeley Engineering and Research, putting a substance into her water bottle; testing identified the heavy metal cadmium, reported at concentrations up to 3.5 million times the federal drinking-water limit, and Yuan's parents also tested positive for cadmium poisoning.
Xu was charged in 2019 with offenses including attempted premeditated murder. In 2023 he pleaded no contest to one felony poisoning count, and in 2024 he was sentenced to two years of probation with one day of jail credit and $7,058 in restitution; Yuan had sought nearly $500,000. Xu completed probation in March 2026 and petitioned for expungement. Yuan began releasing the surveillance video publicly on October 10 and says she still cannot work full time and considers the original punishment far out of proportion to the harm. An expungement does not mean the record disappears entirely.
图片来源：阿拉米达县高等法院所在的雷内·C·戴维森法院大楼（奥克兰），Coolcaesar 摄，CC BY-SA 4.0（Wikimedia Commons）
