The former Westerville physician awaiting sentencing on charges related to operating a "pill mill" has died after being shot during an apparent home invasion on Thursday. 51-year-old Kevin Lake died Friday night at a hospital. Franklin County Sheriff's deputies say the family had recently received a written threat. Lake pleaded guilty to federal charges in January for evading 3.5 million dollars in taxes and for prescribing oxycodone, hydrocodone and Xanax to hundreds of patients daily at a Columbus medical clinic. He resigned as an Ohio University trustee on January 21. Lake was also a former trustee of Bowling Green State University.