Details aren't necessarily easy to come by, but from what I gathered, SZ's parents owned the place, but SZ and GZ stayed there during the trial. GZ was going there to retrieve some of his things now that they are getting divorced ( I assume he's not living there any longer). How the event started or why SZ called 911 is anybody's guess. I assume police don't have evidence that GZ threatened anyone with a weapon or that anyone had any injuries.