As awful as it sounds, I believe the truth as to what happened to Ruth Wilson starts and ends at her home.
Probably. Her Dad, I suspect, knows more than he's letting on. (If her Dad hadn't have lied to Ruth about how her mother died, would all this have happened ?)
There was a retired Irish detective that did a You Tube presentation about her disappearance. He was surprised/disappointed that Ruth's Dad wasn't that interested in taking part.
OK, respect the family's privacy. However, it makes me wonder what her Dad's knows and would rather not say.