Well I don't think a confession is forthcoming, if a crime has been committed against Heather, JMO. I think the perp(s) would be the type who are not about to put their freedom at risk. What is disheartening to me is other cases, like Lauren Spierer and Kortne Stouffer, where it seems even the people they were with that night are not being especially helpful. It makes it impossible for LE to move on past their immediate circles if people won't talk, get lawyers, are evasive, etc. And it seems to me, a lot of young people can stay hardened against parents' pleas for help longer (or forever) than you'd expect. Lauren's parents have been heartbreaking to watch beg for her "friends" to please cooperate.
If Heather went out for food, I think there is a slight chance she ran into a stranger. The flaw there is where her car ended up. But if she went out after making contact with a friend or acquaintance, then no, no stranger. So that last communication is vital, obviously, and LE must know who that involves.
Third ,remote scenario, for me is her going out due to a bout of severe depression, with intent to harm herself. But then I think her purse and phone would have been left in her car, unless she had pills in there, for example, and wanted to call,or text someone at the time. Really wonder what that 3:41 communication was. Could it have been something that makes LE hesitate in calling foul play for certain?
All JMO I can't think of any other scenarios.
JMO