He may have been hired while he was still “the charming man [the abused woman] had fallen in love with.” I bet it’s very difficult to catch an employee who’s (slowly?) gone bad, and perhaps only in a certain context - perhaps he was always a great employee but became a terrible husband.

Note he died by suicide, so I expect some part of the situation caused him intolerable distress. Sad situation.

Like Paultimate said, we do have to fix the car privacy problem. But I’m sure more can be done to continually re-evaluate clearanced employees too.