Without figuring details, I buy into the ~10:40ish final ping. Nobody has contradicted this, even if there are no official sources. It would seem to fit a timeline (i.e. on the phone with her bf around 10pm, and now we know there may have been a knock on her door at that time). No sign of morning cellular activity, and statistically/theoretically speaking, a nightime abduction seems most likely to me (independent of evidence).
Given that, I think the apartment complex sighting might be more important than given credit for. That witness heard a woman scream, saw a woman who may have resembled Jen with I think two men, and it turns out that she had shown an apartment to a woman named Jennifer Kesse I think the week before. This supposedly happened in between 11 and 12 I believe - but the witness may have gotten the time wrong. It's hard to know for sure if this witness saw what she thinks she saw, but this sighting fits a realistic timeline and the witness has not seeked attention.
If true? I've seen people presume that if Jen was looking for an apartment, she must have felt uncomfortable at her residence. I would be more inclined to ask why she was looking for an apartment at that particular complex - did she know someone who lived there? Or, was she looking for an apartment as a favor for someone else who lived out of town? I mean, she owned a condo and probably had friends she could stay with in a pinch, why sign a lease?
Random thoughts: JC sounds like he was a narcissistic ******* who had thought highly of Jen - that makes him a convenient suspect not a good suspect in lieu of evidence that doesn't seem to exist - it doesn't even necessarily make him a narcissist let alone a murderer and he is not described as acting out of character following her disappearance. If her towel was draped over a washer or drier - it may have come out of the washing machine and would have taken longer to dry. Lastly, one thing I feel for sure about the POI, is that he is wearing a watch on his right hand. I can't be the only one who sees this; its a small detail but a distinctive feature.
I've noted two of these earlier in this thread or another - but here are some possibly similar cases I am currently aware of...
Laura Houghteling - the perp killed her in her bedroom late on a Sunday night, cleaned up, dressed up as his victim (complete with clothing handbag and wig), left the house Monday morning at the same time his victim usually left the house for work. He did not take her car - but his victim typically took public transportation to work. Initially, LE assumed it was a morning abduction, in part because the house was clean, in part because her handbag and briefcase were missing and what not, and in part because a neighbor's housekeeper had seen the victim leaving her house (she actually saw the perp dressed up as the victim).
In this case, the perp had kind of been a handiman around her home (i.e. connected to her home), was familiar enough with her routine to stage a morning abduction somewhat credibly, but not familiar enough or otherwise detail oriented enough to get away with it. I guess it's also worth noting that the perp was familiar to the victim's family, and the victim's family was initially critical of LE for investigatging the perp because they didn't think he was capable of such an act and they thought he was being bullied.
Denise O'Neill - abducted by next door neighbor at apartment complex, killed in neighbor's apartment, neighbor and accomplices used the victim's car to dispose of her body, they went on a little joyride after, and the car was later returned to an apartment complex across the street from the victim's apartment complex. In this case, I believe the car was used partially to keep evidence outside of the perps' cars, and also to present the appearance that the victim had been abducted away from her apartment. The victim's family instantly knew she had not been the last to drive her car, because it was left way messier than she would have left it. Robbery was a motive here and the perps were not very intelligent.
Juli Busken - abducted in her own car after returning to her apartment complex around 5am. Perp drove to a remote location, killed her, and then later abandoned her car at an apartment complex nearby the victim's apartment complex. Perp turned out to live within a nearby radius, but he was not a neighbor and the nature of the crime seems random. He may have relied on his victim's car for transportation. In this case, there were neighbors who heard a scream and there were witnesses who didn't necessarily realize what they witnessed until the story broke.
Ingrid Lyne - killed and dismembered at her residence by a romantic interest after a date. Perp almost cleaned up all signs of a crime inside her residence, and took her car to dispose of her body parts, eventually abandoning the car in town. Perp was potentially very drunk and must have known ahead of time he would be suspected; under different circumstances he could have theoretically gotten away with the crime. I think the victim's car was used more than anything else, simply as a means of transportation.