Elsia (Elsa) Anderson Elsa Anderson formerly of Anchorage, Alaska went missing sometime between 1986 - 1988 in Seattle, Washington. Her remains were found by a group of loggers near North Bend in 1993. At the time of her disappearance Elsa was engaging in sex work, having been arrested for the activity several times. This has led to speculation she may have fallen victim to Gary Ridgeway, also known as the Green River Killer. Ridgeway was known to prey on women working the streets during this ti