I believe that LE could very well have a POI in mind yet no actual proof they committed the crime. It's a big stretch from one to the other. I think that is why they are asking the public for help, possibly a witness or accomplice to come forward. With LE making statements as to seeing the POI at three different times in the lot, they would have to have video of some sort. I believe they know more than they are saying. But that is common in an ongoing investigation. JMO's