Can you look back and find your source. This would be the first time I heard about a pertial plate#.
I don't remember the exact numbers, but a partial plate was provided very early on ... all I remember is the 10__ ... something like 1048 or 1050. If I recall correctly, the suspect vehicle was described as a silver van with a partial plate. One would think that a nation wide inquiry would have been done requesting any vans with numbers between 1000 and 1100 on the plate. If the number was correct, hopefully that search has been done. Since there is no movement on the case, I'm assuming that either the number was wrong or a search wasn't done ... or maybe it's taking a while.
It seemed so promising a week ago with video surveillance of the suspect vehicle direction, vehicle description, partial plate ... but every day that I check, there's no arrest ... no Jessica Heeringa.