J Edgar himself did interview Anna, as far as I can tell (unless it was sensationalist reporting..) - and they had several G-men stationed at the property.
But yeah, I'm really curious as to why Anna wasn't charged. Possibly not enough evidence - it's pretty plain that LE thought she did it, and kept her and William on their radar for years afterward.
But yeah, I'm really curious as to why Anna wasn't charged. Possibly not enough evidence - it's pretty plain that LE thought she did it, and kept her and William on their radar for years afterward.