I read and will try to fine, that they said, the roommate was the last to ADMIT to speaking to her. Since I am not sure we can say what the brother has said, I won't report, I won't. And it wasn't in an interview. My opinion, she talked to someone after. Wouldn't the police want to reach out to the world and say that and try to figure that out instead of saying pretending it was the roommate?! It really, for me changes everything. It changes her mood, time table, demeanor, lack of sleep, etc. You could find different witnesses because you could determine her location of her phone pinging per phone call. I don't think this was done to catch the bad "guys" and trap them. I have just found this so odd, along with so many other things. I know I can't say them all.
I do hope this family finds peace and Heather is brought home.