 Next, Willsey interviewed Forrester's ex-wife, who said that days after the murders, Forrester had driven with her out to a wooded area, where he left her in the car and got out to retrieve several firearm shell casings off the ground.He had then driven back home and flushed the casings down the toilet.Willsey then got a warrant to search the septic tank of the house, which was now owned by someone else.