This is based on the link I posted yesterday that contained the police radio traffic. A cop on the scene said on the radio, “ There was a 7A on the back door. I have 3 males inside. They were doing a check…”
The police code 7A is an open door/window, so that means the back door was open.
So, three friends or coworkers went inside the home to check on them. I believe they likely found Spencer near the bed in his upstairs owners’ suite.
I think there were a lot of assumptions that friends were looking through a window when they saw his body, but given the cop’s statement on the radio, we now have proof that 3 males were inside the home.