Snipped for space....Here's what I found when I searched for 'how to make chloraform':
-Google gave me corrected spelling, clicked on it
-One of the to 3 results was
http://www.ehow.com/how_2069802_treat-chloroform-poisoning.html
This link mentions sand & shovel.
-A bag of sand was found at the remain site, no one has asked the A's about this
So per the timeline above, KC had 3 minutes to have perused this article and then gone back to the search and clicked on the Google ad...Was there enough time for her to read this before going back to the Google ad? Would this site have registered on the computer forensics between the 14:16 and 14:19 clicks?
Even if she did not read this article that I found, and forget my sand obsession, did she have time to read any of the results of her searches before she moved to another search?