I'm sure others have searched as well, but typing "how to make chloroform" in google brings up this site first.
http://howtomakechloroform.com/
I found this interesting as I had no idea what was in chloroform:
To learn how to make chloroform, you will need the following materials: acetone, water, pitcher, ice, and
shock powder. The mixture of shock powder and acetone creates a mix that is potent and at the same time dangerous.
Shock powder is Calcium Hypochlorite and is used for swimming pools. You can purchase this in hardware or pool supply stores.
I am curious to know if this was something the Anthonys just had around their home?? Do we know if any of these things had been purchased at any time after the chloroform searches?