Bear Brook Jane Doe was a girl found in 2000 in Bear Brook State Park in Allenstown, New Hampshire. She is believed to have died in 1985 or prior, as the first two victims were located that year. The other three victims were identified in June 2019. This child's father, Terrence Rasmussen, is believed to have killed them.
The victim was found inside of a metal drum with a younger female, later identified as Sarah McWaters. Marlyse Honeychurch and Marie Vaughn had been discovered in the same location in 1985 and are believed to have been killed at the same time.
Authorities were initially unsure of this girl's relationship to the other three victims after DNA testing showed that the adult, oldest and youngest children were maternally related. It was speculated this girl may have been a family friend or that she was paternally related to the other victims.
Forensic tests indicated this child likely originated from California, Oregon, Arizona or Texas.
In 2017 the investigators revealed information that the girl's biological father had been identified as Robert T. Evans (also known by the name Bob Evans and several other aliases), who's known as a former boyfriend of missing Manchester woman, Denise Beaudin and convicted murderer. He died in prison in 2010, and the police now believes that the girl's biological mother - never recovered - probably also fell victim to him. In August 2017, "Robert Evans" had been identified as Terrence Rasmussen, who left his family in Arizona around 1974 and was never seen again by his relatives.