[elli1]

There was also speculation that they knew this guy and he had been at the party the night they had it.

I wondered about that but you'd think that LE would have checked out everybody who went to the party. But maybe not.

[MarMema]

Apparently they did interview one party-attendee for some 7 hours, but released him. And never suspected the father even though he failed part of his lie detector test and had no alibi.

So they know something from the crime scene, and they seem to be thinking it was premeditated.

[MarMema]

Look at this

Mark McKenzie is also Brenda's cousin.

And her boyfriend, according to this.