They don't only have 1, but they will not release them all. The video was only released to hopefully freshen someones memory of that day who may not have thought they saw her but after seeing video may have remembered seeing her. They didn't release it so the public could find someone in the weeds. LE has gone over each video. The utility guy is most likely active with LE. There is no need for him to go public. I wouldn't. If I potentially saw a suspect and I am giving LE criticial information that could make a break in the case, I wouldn't want to be publicly known for my safety.
I honestly think the perp was on the pathway and came in through the belt parkway side and exited there. There are no cameras there besides a Traffic cam on Erskine St. You still can not see anyone exiting onto the Bike path by Spring creek park.
If he came in from the Crossbay Blvd side and went under the bridge by the shore and followed the path then he may be on Vetro's cameras, but he could also not be.
Here is a map where the green shows where a perp could enter and never be seen (even the shore line if by boat, but I don't believe he came by boat) and red where he would be seen by civilians and surveillance.
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