Former Virginia Lt. Gov.
Justin Fairfax's wife,
Cerina Fairfax, evidently felt the need to beef up the amount of security measures taken inside their house before Thursday's apparent murder-suicide ... she set up a bunch of cameras in the home.
Fairfax County Police Chief
Kevin Davis told reporters outside the family's Annandale, VA home Thursday that they first became aware of the cameras in January when they were used to discredit Justin's claims that Cerina assaulted him.
Now, those same cameras have been used to corroborate the details of Thursday's shooting.
The couple was separated but living together, according to the documents we obtained, which police also confirmed today.
Chief Davis said, "I know he was served some paperwork recently. Apparently, the paperwork indicated when he was next to appear in court. That may have been a spark and detectives will figure that out that that led to this tragedy here."