The case is interesting...it was the 'OJ' trail of the late 1800's, never really solved but there are many crime scene photos and testimony. I'm going to have a look see.
The maid did it...she was upset that Ms. Bordon (Lizzy's step-mom) ordered her to clean the windows of the house in 104* August heat, days after the entire group was getting over a case of severe food poisoning. (Which Ms. Bordon had blamed on the maid, and ***presumption by me--they had a huge argument***, the maid hated Ms. Bordon and Ms. Bordon treated the maid like a slave).
I'm still checking it out, but I'm fairly certain it was the maid...she had the time (unlike Lizzy), the motive, and was a bit 'under the radar' in re the local police.