How does an aggie end up at an apartment party with 15 people, in the vicinity of a flagship university that she doesn't attend? The most logical explanations are that one of her aggie friends is friends with the UT students who live there, or that the victim herself was friends with the UT students who live there. That doesn't seem like a very plausible suicide venue if it's something she would have planned out, so if APD wants to say it was a suicide then that also means the idea to jump probably wouldn't have occurred to her until she was already at this party. I suppose stranger things have happened, but I definitely understand why her loved ones aren't buying it.
Malevolent murder, on the other hand, usually means someone with a clear motive. Anger, jealousy, that sort of thing. High school kids, possibly drunk at a party, maybe emotions got high. I don't find it that weird, actually. Haven't been to any of the new construction monstrosities in West Campus but could the balcony really be that big than all 15 other people were on it when it happened? Most likely is there were people congregated in the living and dining areas, a few in bedrooms, one or two in bathrooms, and maybe a few on the balcony having a smoke or just enjoying the view. Which means that most of them could say they saw her go out on the balcony but not necessarily that they were paying attention when anything untoward happened. I would surmise that of those 15 only a handful (2-4) were close enough to see what was going on in the balcony area. The people who actually were on the balcony are gonna be puckered-anuses because they know they should be suspects.
Accident is the explanation that requires the least conjecture. Still incredibly tragic. All I want is for everything else to be ruled out. The family deserves that much.