[Tired of Taxes]

The latest I read is that the two unharmed roommates called friends over that morning.

From this source: TIMELINE

The two surviving roommates were in the basement and slept through the murders, police said. On the morning of Nov. 13, the two roommates called friends over to their house because they thought one of the victims on the second floor had passed out and wasn't waking up, police said. At 11:58 a.m., a 911 call from one of the roommate's phones requested help for an unconscious person, police said. The 911 caller's identity has not been released but police said "multiple people talked with the 911 dispatcher."

It doesn't make sense to me, either.

[Ann Archy]

SOUNDS FISHY!

[TornadoAlley3]

The bedroom doors may have been locked from the inside and closed by the killer.

The unharmed girls tried knocking and no response. Called some guys to come break it down? Then when they arrived, called 911 saying unconscious because he wasn't responding, thinking he had alcohol poisoning?