Long-sought witness in teen’s 1971 disappearance is located

Investigators: New information points to killer Forrest

By Tyler Brown, Staff writer

December 11, 2025 8:04 am

Clark County, Public Safety

Jamie Grissim (Contributed photo)

Starr Lara wears a T-shirt in honor of her sister, Jamie Grissim, who is one of Warren Forrest’s suspected victims, after his sentencing for the murder of Martha Morrison in Clark County Superior Court on Feb. 17, 2023. (Amanda Cowan/The Columbian files)

Serial killer Warren Forrest leaves the courtroom after jury selection in his cold-case murder trial at the Clark County Courthouse on Jan. 24, 2023. (Amanda Cowan/The Columbian files)

Starr Lara speaks about the jury’s guilty verdict against serial killer Warren Forrest on Feb. 1, 2023, at the Clark County Courthouse. Forrest was convicted of first-degree murder in the killing of 17-year-old Martha Morrison of Portland in 1974. Forrest is also suspected in connection with the 1971 disappearance of Lara’s sister, Jamie Grissim. (Taylor Balkom/The Columbian files)

Investigators have located a long-sought witness in the 1971 disappearance of Vancouver teenager Jamie Grissim and say new information has strengthened their belief that she was a victim of serial killer Warren Forrest.

The Clark County Sheriff’s Office said in a news release Friday that it has canceled an “attempt to locate” bulletin for 72-year-old Matt McClure after cold-case investigators found and interviewed him. The bulletin, issued earlier this year, sought help from the public because McClure was believed to have information tied to a possible sighting of Grissim in the winter of 1971.

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