A few of my theories:
Evans was probably not born in San Pedro or Evanston, Wyoming. At any rate, he did not grow up in either place. He grew up or possibly was born back East, possibly around New England.
Definitely Danish or Norwegian. On the Allenstown Research page, a commenter says, "There you go. You got it right. Danish man with local connections." This person may know who he is. It was said that he spoke a foreign language. That could be Norwegian or Danish.
Another commenter who seems like he knew who he was said, "Child molester. Took many secrets with him to his grave." This comment was made in 2015 and this person eerily seemed to know that Evans was dead.
Another commenter who knows too much said, "They were not angels and he was not necessarily evil, but they did not deserve to die." He then elaborates later on, implying that the dead woman may not have been a good person either. He says she sold her kids to Evans so he could molest them. Also said Evans blackmailed her to get her to do this. If she was a criminal too, then it makes excellent sense how we have not been able to turn her up.
Youtube commenter who knows too much said, "I know the 10 year old. She was my best friend. Her name was Stefanie."
After leaving NH with Denise, Evans and Denise may have gone to Texas. They may have lived there for some time. Denise may well have been killed in Texas, but she may have lived with Evans for a couple of years before she was killed. "She panicked in a robbery." Does this mean that Evans said she was helping him to rob someone. He says repeatedly that the girl's mother (Denise) died in Texas. Car he was driving in Santa Cruz registered to a motel in Texas.
Man and woman (Denise) who lived across from the store in 1980-81 say that the women were a family. They were "carnies" who traveled with carnivals. A man named "the trucker" seems to be involved, but he is not Evans. This man came from Texas with the woman and her two children. The three of them lived in a white trailer across from the store and later may have moved into an apartment above the store. The witness said that the woman came from a foreign country and spoke broken English. Evans may well have been molesting both of the woman's daughters. Same woman said she witnessed the killings one night - she heard them. She called police twice but no one came. She tried to call a third time but was threatened so she stopped.
From one or two other commenters, more references to "the trucker" who brought the family from Texas. Also references to carnies.
The girl in the first barrel had her skull bashed in with a brick.
Evans' daughter is quite a mystery, but there is a suggestion that she was close to the family of three who were killed.
Three females probably a family - mother and two children.
There are repeated references to "the trucker" and some seem to suggest that this is Evans. But how was Evans a trucker?
Evans' missing 12 years were mostly spent in California, where he lived in back of a store where he worked in Contra Costa County. This was near where he met wife Jun.
Evans was indeed in the military.
The store burned to the ground in 1983. A man who knows too much says that fire was related to the killings. How?
,
Robert Lewis Quaile Sr. Born in Cortland NY in 1937 or 38, worked in electrical maintenance department of Waumbec with Evans. They were close friends and shared "extracurricular activities." Quaile is now dead. He was a rapist.
Motive in a lot of cases was child molesting. Looks like he liked them young too. A babyf****r.
Evans is a charming psychopath, a classic case.