So if this is accurate about the 11 minutes
"In this googlemap, it shows from JR's residence to the site where her vehicle/body was found (11 minutes in the opposite direction of her work, if her work was Williams in Cambridge)."
Then I would think it was easily walkable back to her residence. Which means that someone could have been with her in her vehicle and easily could have walked back to her residence. Depending on walking speed and actual distance it could have taken a little while but even if a 1 hour walk it means it is still walkable.
Good point. If someone had driven JR to the site where her vehicle was found, they would have had to get back to wherever they were going after that... by foot (unless they packed a skateboard or a bicycle or something, which is unlikely?). I know lots of people go for 5km runs each morning.. so double that to get back to her residence.. certainly not impossible at all.. but sure explains why police are saying any tips at all could be significant.
Imagine if a local neighbouring resident had seen someone walking to JR's home at a given time on that morning? It could seem completely meaningless and not worthy of mention unless the person perhaps were thinking along those lines? It also can explain the drones and searching in the fields in the area? I wonder if scent-dogs were dispatched as well, I suppose not, or it would have been mentioned (but it sure would have been interesting if they had dispatched dogs to seek out a certain person's scent, and follow it, if found?)? Also, if a person drove JR to that location with her in the back on the floor, the person would surely have been wearing gloves, so they could have been seeking gloves?