Where are her shoes?
Borce just didn't think things through... if you are going to claim that someone walked out, onto the pavement, to 'clear their head' you have to make some provision for them having shoes ON .
Shoes, apparently, are very difficult to put on a dead persons feet.. I cant remember where I read that, it may be more an indication of the stuff I read in my idle time than scientifically catalogued measurements, but it is also the kind of thing murderers forget to do, put the shoes back on. I bet Borce didn't think about her (dead ) bare feet till much later, …