Another tip submitted to the police. Courtesy of John Gannon.
“Dear The Detectives
In going into the Wallace Case I think that the murderer of Mrs Wallace was a whoman who lived near by. A striking fact about the case is that the weapon has never been found because it has gone into some home near by. A murderer always has a dread of carrying a weapon he has done the deed with about with him on him so therefore they always leave it about or throw it away, where it is found.
This I think was taken to a nearby home. Another thing also. The murder was a clean murder. A woman always _ to go about a house in a clean way because of her house duties. To react (re-enact?) the crime I think that Mrs. Wallace has either been at variance with a woman more so I think that she has lent some woman nearby money and has threatened to tell the woman’s husband if she was not repaid that evening.
The woman has come to plead with her not to do so without any result so she has shoved her down and shut her mouth for ever. A desperate woman will do anything. Try your luck on these lines.