This statement by Tuesdays witness confounded me:
I couldnt understand why LE didn't ask more about the woman in the white coat. And then I re-read the Tweets and had a lightbulb moment. The above refers to the first interview on
April 11th a mere three days after Tori went missing. I think the following should explain that. MOO
http://www.torontosun.com/news/columnists/michele_mandel/2009/05/21/9519901-sun.html
http://www.ottawasun.com/2012/03/07/toris-mom-to-take-the-stand
LE didnt ask grandma any more questions on April 11th because they thought the woman walking with Tori was TM. She also thought it was the girl's mother. Even later, it would not seem significant to her that the woman walked into the school. Why would it? LE didn't seem all that interested just a few weeks before.
And then, on May 19th, TLM confessed to the crime and everything changed. Grandma was called back for another LE interview on
May 26th and remembered a significant detail.
So,
After TM was no longer a suspect, LE questioned her in more depth. According to the above Tweets, the part about the front door was in her May 26th statement. It would therefore be part of the evidence that both the Crown and Derstines teams had access to for almost three years.
JMO