A California engineer, convicted of poisoning his colleague, is attempting to clear his felony conviction as new video evidence surfaces. The footage shows him secretly poisoning his co-worker’s drink with a dangerous chemical over a prolonged period, leading to severe health issues for the victim. The woman, who nearly died from the poisoning, has released the hidden-camera recordings to reveal the harrowing experience she endured. As the convicted man seeks to erase his criminal record citing employment concerns, the case highlights the distressing circumstances surrounding workplace safety and accountability.