Billings Launches Homicide Investigation After Shawna Grove, 35, Found Dead in Vehicle
The case is fueling a citywide push to strengthen domestic-violence safeguards through a review of police practices.
Overview
- Police said the 35-year-old was reported missing Friday morning in Billings and found dead that night inside a vehicle located in Big Horn County.
- Detectives are investigating the death as a homicide and say they suspect her estranged husband, Tanner Grove, who is in custody on a separate charge.
- As of Monday, prosecutors had not filed homicide charges connected to her death.
- Court records detail a no-contact order issued Oct. 21, 2025, and a March 29 incident where Tanner Grove allegedly pointed a shotgun at two minors, leading to felony assault-with-weapon counts.
- Following an emotional City Council meeting Tuesday, city leaders set a work session within 10 days to examine police training and intervention in domestic-violence cases, as advocates press for broader reforms.