George Zimmerman told police he was going to Target that night to go shopping. His father told investigators in a recorded interview in discovery that he goes shopping every Sunday night for groceries for the next week, that he even texted with his sister before he went.
Police would have questioned Zimmerman about his activities the entire day. Did he tell them he went to the ATM at M&I bank, which prompted them to get footage to check if he was there? Or did he not tell them he was there and learned through obtaining his bank records he was there, and then check the video to prove it, so they could claim an inconsistency in his statements?
Here's a map that includes Target, 7-11, M&I Bank and the entrance to Twin Lakes (bigger version here):
Is it possible Zimmerman had been to Target and the bank and was driving home from Target when he first saw Trayvon, who was walking back to Twin Lakes from 711 on Rinehart Rd? Did he see him use the cut through path between houses at the northwest, and then drive around the circle once following him, before he parked his truck to call the non-emergency number and report a suspicious person?
I think this is unlikely. According to Google Maps and directions, this is the route he would have taken -- but it seems to me he could turned right on Rinehart Rd from the bank to get to Target, or gone back that way as well. (Larger version here.)
While the M&I Bank is also on the same road as the 7-11, it is far east of it. I can't imagine Trayvon is in the video since I doubt he had an ATM card when he carried no other identification.
The state has said there are inconsistencies in Zimmerman's statements, but Zimmerman was emphatic during cross-examination at the bond hearing that he did not change his account of what happened when speaking to police. Since the state has to turn over exculpatory evidence, I don't think we can determine if the video is evidence that contradicts or confirms his account.
What relevance do you think the bank camera surveillance could have? You can also discuss other aspects of the discovery here.