Is you have massive amounts of blood on the walls...
Does it wash off so light you could cover it easily?
I would think it would require some time to
A)Clean it all up.
B)Clean up the things you used to clean.
C)Go buy paint.
D)Paint the ceiling AND walls.
E)Hide the body.
F)Dig a pit...unless they already had a pit and he just had to enlarge it....
G)Start a fire that would be unnoticed by neighbors and spouse.
H)Regain composure to seem normal.
That isn’t an hour project. And I assume there would be some stress involved there. How do you hide the stress of killing and covering it up from someone who knows you so well?
IF my husband wanted to paint and appeared to be stressed out I would wonder.
I think (from watching too much Forensics files etc) that blood is hard to clean up so it takes time, effort and some strong cleaner.
At least for me it has (long story, but I cut my finger one TG and you’d have thought we had a massacre)
And the paint, again, painting one room is pretty much an all day job from start to finish, unless he just painted the offending walls, but you have to match paint perfectly then.
So yea, all the cleaning, prepping, painting, digging, burnign would have seemed extremely odd.
From other crime stories, we know that often they like to use bleach to clean it up. Bleach has a strong odor that doesn’t go away quickly, and it discolors things like carpets and wood floors (furniture, etc. also). I would think the house would have fairly REEKED of bleach for some time—and the wife, of all people, would have not only noticed it but also should have been able to figure out what it had been used for.
As to why/how she might have been killed in the garage, yet blood in the living room—maybe it started in the livingroom, and she tried to get away from them—they caught her, dragged her into the garage, then hit her with the crowbar? Just brainstorming, please don’e assume I think that IS what happened, but it seems to be one possibility.