With regard to the bed and a struggle in the house. I also wrote down what was said in the Missing Persons Episode about that.
According to LM, the house was "undisturbed." Shoes, purse, and last known clothing were missing. In the bedroom, the fitted sheet was "missing" from the bed. I don't know if this means that they know exactly which sheet it was and, like her clothes, it's definitely not in the house, or just that you'd expect a fitted sheet to be on the bed and for whatever reason there wasn't one. One corner of the mattress was "sagging," and "it looked like someone had tried to flip the mattress." She also described it as looking like someone had lifted one corner of the mattress and the slats underneath had shifted. The interviewer asked if there were any signs of a struggle or of self harm and LM answered "no."
There was a question here about when police searched the house. According to this interview, they searched the house prior to the neighborhood searches/canvassing. The original sweep was done by the Plymouth County BCI. They did not tell family any info about what they found or their conclusions. Approximately 53 days later, Laina wrote to the Plymouth County DA with her concerns. She stressed that disappearing was wholly out of character for her mother. This was the point at which lead investigative agency was reassigned to the Mass State Police and a new forensic search was done. MSP still work in conjunction with a detective from the town of Hanson police department.
The police conducted seven searches for Sandra. They utilized LE, civilian, foot and atv, drone and canine searches. All neighbors with surveillance cameras have given footage to police. Police took dogs into neighbors houses as part of their search. LM believes that these searches were thorough.
The family hired a private investigator early on. According to LM, this PI "cleared all the neighbors." One reason that the PI was hired was because people were sending anonymous letters to LM accusing a particular resident of Hanson who lived not far away. It's not discussed what brought this person onto the radar of so many people, but I think it's because they are on the sex offender registry. According to LM, this person was cleared.
LM has been hurt by the actions (or lack thereof) by the neighbors. They seemed distant or uncaring about the possibility that a robbery or abduction had occurred, according to her. She thinks that someone in the neighborhood must have seen something pertaining to the disappearance but the neighbors seem to resistant to the idea. At one point, a news station was filming a story about Sandra and neighbors called the police about the disruption on the street. Why aren't neighbors, some with young children, more concerned about the fact that someone who lived on the same quiet, dead end street vanished into thin air? It's just another part of the mystery.
Hope this clears up some questions that earlier articles did not address.