Laura Sue Benjamin was 23 when her body was found on May 26, 1979, in a drainage culvert in the Angeles National Forest near Big Tujunga Dam, Los Angeles County. She had been missing for more than two months, and investigators determined she had been shot twice in the head.

Links in the cases of several young women with similar appearances led investigators to label the killings the look-alike murders. The investigation identified Thor Nis Christiansen as the perpetrator; his pattern reportedly involved offering rides to young women, shooting them in the head with a .22 caliber pistol, and sexually assaulting their bodies. Other victims named in connection with the series include Jacqueline Ann Rook, Mary Ann Sarris, and Patricia Marie Laney.

An arrest was made on July 11, 1979, after a surviving victim, Linda Preston, identified Christiansen in a Hollywood tavern. Questions remain about the full scope of victims and the circumstances that allowed these crimes to continue for months — anyone with information about Laura, her last known movements, or the locations where she may have been seen is asked to come forward.