Jumping off your post, here's a quick transcription (my own) regarding the autopsy mention from the presser:
REPORTER:
Sheriff, you said that casings, gun casings were found, bullet casings were found, but yet you refuse to say the manner in which the two were killed. The assumption would be that it was a homicide by shooting. Can you comment at all on cause of death at this point, given that discrepancy?
SHERIFF CHRIS FITZGERALD:
We will not be commenting on death, we are waiting on the autopsy reports to be done. The autopsies [are] being done currently, after that we hope to get a preliminary autopsy results. Hopefully at 4 o’clock we will be able to release more information about that.
Adding the presser video, for reference.