Troy Charlton, 49, was found lying on the street severely injured early last Wednesday morning.
At first investigators thought it was a hit-and-run, but now they say Charlton was seen leaving a party riding on the hood of a car.
Witnesses told police Charlton was thrown from the car when it came to a sudden stop.
Christina Laforge, 46, has been charged with criminal negligence causing death and impaired driving causing death.
Sicamous RCMP Sgt. Dave Dubnyk said it appears alcohol was a factor in the incident.
"This kind of behaviour is shocking regardless of age. Given the fact that they're in their 40s is, ah — at the end of the day, regardless of age, it's a tragic incident that really has its effects on a small town."
Laforge is scheduled to appear in court in Salmon Arm in September.