Peter Van Sant

Any sign of a struggle inside that house, that a battle had gone on there?

Investigators then checked if there was more blood, invisible to the naked eye, by spraying a special chemical across the floor.

And does that suggest in any way some sort of progression of an attack on Gary?

Spots of blood weren't the only things they found in the basement.

One of Detective Hayes' colleagues later noticed something on the floor.

He sees it, kind of sees a shiny object or something, gets closer, looks and says, that's a bullet.

Outside, sheriff's deputies found more evidence.

Scott told detectives that the tractor Gary regularly used was parked in the yard and not under the shed where Gary usually parked.

Once detectives got a closer look, they noticed something.

We're talking, though, a couple of drops, right?

There was also blood on an RTV.

Detectives talked to the oldest, Chris Ferris.

Chris was already en route to pick up his daughter from her sleepover at the farm that morning when Amanda called with news that their father was missing.

Chris recounted his movements in an interview with detectives a few weeks after the remains were discovered.

Chris said that he was on the RTV looking for his father when he spotted Melody walking towards the burn pile.

He was suspicious no one in the family had checked that area until after he arrived.

Scott also told detectives about something he thought was strange.

Back on the first day of the investigation, Scott noticed more than just his father was missing.

A few weeks before Gary disappeared, Scott said he saw an unfamiliar .38 snub-nosed revolver in a basement drawer.

However, when he searched the house the day of his father's disappearance, the gun was gone.