The father and stepmother of Lizzie Borden…
1892 CE
Although acquitted at trial, Borden will remain the prime suspect in her father's and stepmother's murders.
Writer Victoria Lincoln will propose in 1967 that Borden might have committed the murders while in a fugue state.
Another prominent suggestion will be that she was physically and sexually abused by her father, which drove her to commit patricide.
There is little evidence to support this, but incest is not a topic that would have been discussed at the time, and the methods for collecting physical evidence would have been quite different in 1892.
This belief is intimated in local papers at the time of the murders, and will be revisited by scholar Marcia Carlisle in a 1992 essay.