Let's run with #1 for a minute. If we believe that SK wasn't just making conversation when he told AM's family that he was going to Sacramento and that he really intended to, this could change some scenarios.
The trip to RV certainly appears impulsive and spontaneous in nature. Knowing that he would drive 13 hours and leave at an odd hour without letting anyone know or packing anything of importance to take with him, let's apply that same behavior to the following days.
If we look at where his last cell phone pings were registered, they are right next to Hwy 93. Follow 93 north and it turns into Hwy 95 which has several junctions heading west that go directly to Sacramento.
Then, let's take a step back and look at his previous cell phone pings. The one that occurred Saturday a.m. at Overton could have been on outbound trip to Henderson with the evening ping at Mesquite being the return trip. The neighbor said he saw SK arrive home at 10pm and leave 30 mins after. What if that is when he got his toiletry bag, pillow, blanket, etc and then returned to Henderson, perhaps staying with someone in the SCA neighborhood after he had already spent the day in Henderson.
If he was staying with someone in Henderson or in SCA, SK would have already been in Henderson when the Sunday a.m. call happened and he stated that he could go back to St. G if needed, but that wasn't in his plans for the day. He might have been with people who were staying with a family member who lived in SCA, but were traveling back to Sacramento within the next day or so and he intended to travel with them. Remember, the time frame of this incident occurred during college semester break and right between two holidays.
When the second call from his church member happened, SK stated he couldn't attend. It could be that the departure time for Sacaramento was approaching. If he had already stayed Saturday night in the SCA neighborhood, he would have been familiar with it and may have parked his vehicle in the driveway of his traveling companions which is why he wasn't seen on camera before. When the time to depart was approaching, that's when he might have moved his vehicle to the cul-de-sac. When watching him on the surveillance video, he didn't look as though he was searching for an unknown address or location. His head was down and he appeared comfortable with his surroundings.
Maybe SK planned on only being gone for a day or two and given his impulsive spontaneous trip in the days prior, and that could be why he didn't pack or take more essential items. If one of the family members was in college in Henderson, but were Sacramento natives, and were staying in campus housing or nearby apartments, leaving his vehicle there may not have seemed as safe compared to parking it in the SCA neighborhood where someone known to the individual might have been residing and could keep an eye on it.
Then, SK and his unknown companions started off for Sacramento in their car the following day, bright and early and he checked his voicemail before he lost his signal. And, given that he didn't like the cold weather, he may have looked at this as an opportunity to do some job searching in Sacramento which may be why he was carrying a folder that may have contained his resume.
That would explain why no one in the SCA neighborhood seems to know much about anything. The search for SK may actually be somewhere along Hwy 95 towards Sacramento or Sacramento proper. It would also provide some explaination as to why no one has come forward if his traveling companions are actually residents of Sacramento, where this disappearance might not have made the news.
In reviewing all the prior threads, there's been no talk about SK possibly experiencing an unexpected medical situation that resulted in his passing and his companions, for whatever reason, failed to report it to the authorities and instead, improperly disposed of his body. I've encountered a situation exactly like this twice in my profession when otherwise upstanding law abiding citizens can panic and improperly dispose of a body even though they didn't cause the person's death and didn't do anything wrong or have anything to hide.
What are everyone's thoughts?
ok...well my initial questions on this theory are thus:
1) we don't know a motive to go to sacramento...no calls to sacramento area (of course there weren't calls to henderson either so this may not mean much with steven)
2) if this is an innocent trip with a fellow young person, why no calls? texts? that we know of. steven's motives in his final days seem either desperate or furtive, explaining the no calls from him. but the other person, unless it was a boring appointment set up ahead of time or a furtive motive, would generally call or email before a trip like that? hey still coming? etc...so I would think, maybe the trip is not innocent.
3) seems like he would have had a bigger bag with him, even if only for a couple day trip
4) disposal of a body. this is a possibility...I see it more as maybe an accident that they felt like they could be implicated in? a medical condition that is not a drug or alcohol overdose, seems like most normal, nonnefarious people would call for help. it is more common to not do so (if there is no foul play) due to something like an overdose, related to fear. but if an accident occurred...I have no idea what kind of accident would occur. steven is not known to have any serious medical condition, although sometimes people do have heart issues that go unnoticed and then seem to get them out of nowhere. most of those young people seem to be athletes though. if there was more than one person involved, no foul play, no drugs, and no alcohol, someone would have either stopped the disposal or their conscience would have gotten to them and one of them would have said something to someone eventually? who would report it to police. he had his blanket, pillow, and shaving kit in the car...maybe he did make plans to take another long trip, and then never had the chance to go get them?
5) phone pinged in las vegas several times in the whitney ranch/ russell road area, many hours apart...this is a little ways from SCA area...so his cell phone got dumped there or tossed, he got dumped there, or he went up and stayed there for an unknown period of time before leaving? the first two point to either foul play, or him tossing his own cell phone (for reasons of suicide or disappearance, not an innocent trip). the last one makes me think, he did not intend to leave from henderson on the 13th, but after staying in LV on the 14th. why stay the night in LV if you leave your car in henderson the day before? possible but I just can't quite make the pieces fit...so we have an accomplice with multiple connections to LV or whitney area, henderson, and sacramento. their family or anyone else in SCA has not admitted to seeing this missing person or hearing about him at all. if he did have a companion, I think they were secretive. meaning they were helping him do something "bad" (disappear or commit suicide) or they did something to him.
things I like about this theory:
1) I do think it is likely he made a prior trip to LV or henderson, likely same day as overton/mesquite ping/gas charge.
2) I like thinking that maybe he WAS at a house, but just moved his car out of the way. this could point to anyone in the whole loop (maybe laurel I think it is called? since he drove from that direction) explaining why everyone on EL said they never met with him. I'm sure they questioned people on EL/portsmouth prob more closely than the further streets.
3) timeframe for someone else to make a trip- you're right it is around xmas break.