Likely true. But consider this.
If Martin had NO TRACE of any drugs in his system, then doesn't that just leave one conclusion?
He did it because he was a punk, a gangsta wannabe punk whose parents could no longer control him, and he thought he could get away with it. He was becoming a criminal in every way, and murder was just next.
So what you’re saying is that the THC argument is a red herring? They want to keep this kid as spotless as possible, but the evidence is stacking up against it.