A man has been charged in connection with a fatal crash that occurred on Interstate 90 in Gallatin County in January.  

On Feb. 27, the Gallatin County Attorney’s Office charged 23-year-old Alexander Norbert Ledoux of Bozeman with Vehicular Homicide While Under the Influence, Fleeing from or Eluding a Peace Officer and 6 counts of Criminal Endangerment.  

Ledoux is charged with killing 22-year-old Laysa Grewell after driving approximately 20 miles in the wrong direction on I-90. Grewell and her fiancé have a 1-year-old child and had recently learned they were expecting a second child. When he crashed into Grewell, LeDoux was travelling approximately 100 MPH with a blood alcohol content of .198. 

Ledoux will make his initial appearance in Gallatin County District Court at 9:30 a.m. on March 28, 2024 before Judge Andrew Breuner. At this hearing, Ledoux will enter a plea to the charges and subsequent hearings will be scheduled.  

Gallatin County Attorney Shannon Foley is prosecuting the case, which was investigated by the Montana Highway Patrol.  

Here are the affidavit of probable cause and information charging Ledoux. Additional court documents can be found in the Clerk of District Court’s Office at the Law and Justice Center in Bozeman. Case number: DC 24-131D.