On the weekend before Thanksgiving 2025, emergency calls brought police to a Granite Drive home in Evanston, Wyoming, after a pre-dawn shooting. Officers found 49-year-old Michael Grasse critically wounded by multiple gunshot injuries; he was taken to Evanston Regional Hospital and pronounced dead at about 4:22 a.m. on Saturday, Nov. 22.

Investigators say there had been ongoing conflict in the household the previous day. Police recovered a Taurus .22-caliber semiautomatic pistol from the bedroom of Michael’s 23-year-old son, Ethan Grasse, along with three spent .22-caliber shell casings and one live round in the chamber. According to an evidentiary affidavit, Ethan was taken into custody, given Miranda warnings, and in a recorded interview admitted firing the shots and described prior drinking and repeated arguments. Prosecutors charged Ethan with second-degree murder; bond was set at $100,000 cash-only and a preliminary hearing was scheduled for Dec. 1, 2025.

In a handwritten court filing, Ethan asserted he acted in self-defense, saying he awoke to someone forcing entry into his room around 4 a.m. and did not realize it was his father; he also expressed remorse and said he did not mean to kill anyone. Those claims have not been tested at trial. Does anyone have information about the events on Granite Drive that weekend or about the Grasse family’s relationship beforehand?