The defense wants you to believe that all those things above are false or fabricated, and that he went into a house full of people, including law enforcement officers, all of them are now lying, he got beat up and bitten by their dog, then they dragged him out in the street to die and they were smart enough to plant him right on top of his broken glass. Without presenting a single piece of evidence any of this is real.
The defense's case is beyond ludicrous.
I have to ask, how much of the trial have you watched?
It's the prosecution's case that is beyond ludicrous. They don't even have a viable theory of what happened (See Trooper Paul's testimony. It's the most embarrassing testimony I've ever heard. Well, aside from Proctor's). Not only are there independent witnesses who put Karen Read sitting alone in her car, no doubt waiting for John's return or call, no one in this "house full of people" saw a body lying in the front yard as they left the premises, walking near by and then driving by the exact location.
It's also important to put the "house full of people" into context. It's very possible the younger ones sitting in the dining area never saw John enter and head downstairs. The stairs down are off the foyer and the floorplan isn't open with a limited view from the doorway of the dining room. Which is not to say they weren't aware something had happened after the fact. These young people were not questioned and some weren't even identified until many months later. If they were told (and this is a direct quote from Matt McCabe) "Just tell them the guy never went into the house" and didn't want to rock anything with the no doubt intimidating Brian Albert, this would explain why they didn't come forth right away on their own.
No one asked and no one told, but by the time LE finally was forced (by the FBI's investigation) to deal with the bystanders, if they had heard something, they no doubt knew they were complicit in keeping silent as they knew the next day John was found dead on the lawn.
This meets the definition of accessory to murder after the fact.
We're really only talking about two non-family members, Julie Nagle and Sara Levinson. Had they been questioned by law enforcement in a proper LE setting, they may well have told about a commotion in the basement. But they didn't and by the time LE did ask questions, they'd be silent long enough to know they could face charges. So they decided to take Matt's advice and just keep repeating, "The guy never went into the house". Easy enough. "I know nothing."
As for the cops, aside from John, there was only Brian Albert and Brian Higgins. And they are both shady as hell, denying documented phone calls and conversation (see butt dialing and butt answering), destroying phones under court order (BH's at a military base where State police have no jurisdiction), and with Brian Albert not bothering to even step outside when there were ambulance, police and a screaming woman right under his bedroom window. Probably too busy still doing clean up in the basement.
No doubt. John was killed in that house. The state doesn't even have a remotely viable theory to show otherwise. They only have a conflicted and dirty lead investigator and Trooper Joe Paul, who literally spoke gibberish on the stand.