bolding mine.At that age, I was just getting started at 11 PM and often up at 3 on weekend nights, so I think it's possible that they were awake, and the reason the timeframe is more or less known is that that's when activity stopped on all of their phones... but obviously I have no idea what happened.
I agree that it doesn't seem like a great idea to say that there's no threat to the public when nothing is really known.
JMO
Ita.
Wonder if LE have a valid suspect in mind and a motive, but not enough evidence for an arrest ?
Still ... I'd think there was cause for concern to the public, esp. if the perp feels the walls closing in on them !