You might want to listen to this again. I did get a lot of info from these four friends of SS's. Their impressions. One of the four SS friends, Josh, said he never saw SS lose his temper, but Chase says a head injury made SS lost his temper super fast. Josh talked about visiting the condo at the 1:15:40. Said they had to go right upstairs to the bedroom to have the visit. Said some of Jenn's family lived there too. He seemed to think MS had her own room, but it could've been the little LR section.
Stephan Sterns - All Full Interviews With Chapters (my notes)
Ryan 1:19 (from back when they were preteens)
Frank 23:43 (more recent friend - a gamer friend)
Josh part 1 47:49 (16 when met SS in CA, SS hit on his ex wife) (1:02:00 Josh did meet MS once / 1:04:11 met JS, tells his impression.)
Josh part 2 1:13:31 (Josh met MS & JS. Josh went to condo 1:15:40)
Chase 1:36:50 (friend from high school, lived in same room for five yrs. Knew SS when he was 17-27 yrs. old. SS pulled a gun on him. Now he says after SS got hit in head he lost his temper quick!)