SIAP and I missed it but have the blood DNA results come back yet? Obviously killing four people with a huge knife in a frenzy would make the likelihood the killer left his own blood on the scene possible.
Also any info come out on the glove found outside the house? Have the police stated if they believe it belonged to the killer or one of the housemates?
Edit, never mind I see now that the glove was found weeks after the murder and cops didn't see it in earlier searches. It was found by a retired cop that went by the house weeks after the crime. I can't believe the cops would be so incompetent to miss a glove outside the home with the number of officers, forensic techs, etc that were there in the days after the murder. One of them could have dropped their glove by mistake or someone else dropped it there to muddle with the case, maybe even the retired cop that claims to have found it.
Disclaimer: Views expressed in this post reflect the opinions of Texags user bonfarr and are not to be accepted as facts or to be accepted at face value.