Summer Cheyenne Martin, 21, was shot and killed in Ada, Oklahoma, on April 28, 2025. Born in Ada on May 17, 2003, she was the mother of a son and a daughter. The fatal confrontation took place at a residence she was visiting; investigators say an argument began when 38-year-old Heather Lynn Harjo and a man arrived. The dispute between the two women escalated into a physical fight. Martin reportedly tried to use a power tool during the altercation before a witness intervened, and Harjo allegedly shot and fatally wounded Martin.

Immediately after the shooting, Harjo fled the scene. Authorities have issued a warrant for her arrest and added her, under the aliases Heather Thompson and Heather Lynn Brown, to the Attorney General’s 10 Most Wanted list, describing her as dangerous. The investigation remains ongoing and no resolution has been announced.

If anyone knew Summer, was at the residence that night, or has information about Harjo’s whereabouts, please share what you know with Ada investigators.