his car and house didn't get broken into
if you look at the picture of his car above... none of the window got broken in
what you describing is that the killer has the key
and just going around spreading the blood everywhere
inside his car and house
Whoever killed them doesn't know how to put
blood all over his car so he would be blamed for it,
you mean?
If you killed your wife and her boyfriend, would
you put blood in your car so people can catch
you for it?