There are plenty of real-life examples where killers were also car service drivers. Cabbie serial killers feed their insatiable hunger for death by posing as people trying to make an honest living. They don't care about getting 5 stars on Uber, they only care about picking up their next victim. Climbing in the backseat of a stranger's car is always a risk, and most people who work in the transportation industry aren't trying to kill you, but there are some out there hoping to take advantage of patrons.
Gowri Shankar - The Rickshaw Killer
Jason Dalton - The Uber Killer
Jesse Matthew Jr., The Cabbie Who Killed College Girls
UK Cabbie Christopher Halliwell Used Business To Murder
Russell Ellwood Threw His Victim In A Swamp