No not thick. This case will (hopefully) be sealed on the fact of what evidence should be there but isn't, as much as blowing apart HvB's story.
He's lost it now. An intruder could not have got out of there without leaving a trail of footprints and bloody handprints - gloved or not - climbing over the wall or gate. HvB couldn't fake a trail of shoes not to be found in the house without having taken some shoes specifically and done the gate hike himself, but then he'd have to have disposed of those shoes and taken a spare pair with him to walk back home in.
We still haven't heard about Sasha's prints. I feel she must have been put in the garden first, which if true shows more planning.