I'm sure there's a lot being done that's below the radar, but I still continue to feel like there is SO MUCH information out there that hasn't been looked at.
If he met these two guys at a party recently, whose party was it? Who ARE these two guys? If they were at a party together, even if they kind of crashed the party, I would bet there are photos of them somewhere on someone's phone.
If they were going fishing together, and leaving from Katy to get to Lake Livingston together it seems there MUST be cell phone contact of some kind - surely they didn't just make the plans at the party and then never contact each other again about plans to go to the lake.
This seems fairly solvable, and I'm surprised the family has immediately decided that Kyle didn't take his car on his own and leave. That seems to make the most sense.
It's not like he has a long history of stability.