CONCORD, N.H. (AP) — Officials have released an updated digital facial reconstruction for an unidentified girl whose decomposed body was found in a barrel near a New Hampshire state park years ago.

The girl was one of four victims found in two barrels near the park in Allenstown in 1985 and 2000. Three of them, a mother and her two daughters, were identified last year. The unidentified girl isn’t believed to be related to them.

Authorities believe Terry Peder Rasmussen was responsible for all four deaths and that the unidentified body is his daughter’s.

Rasmussen, who is suspected of killing at least six women and two children, died in a California prison in 2010. Attempts to reach relatives of Rasmussen have been unsuccessful.

Through ongoing genealogy work, the National Center for Missing and Exploited Children says the child is primarily Caucasian with a small amount of Asian, black, and American Indian ancestry. She was 2 to 4 years old at the time of her death, placing her birthdate between 1975-1977. She had slightly wavy brown hair and stood as tall as 3 feet, 9 inches. She had a slight overbite.

The investigation suggests that she was not from New Hampshire, but most likely from Texas, Arizona, California or Oregon.