Peter Van Sant

Where does this investigation begin?

With family and friends.

We need to formulate a timeline to figure out exactly when Dennis and Myrna died so we can put together the pieces of the puzzle.

A crucial piece of that puzzle came from Myrna

When she was shot, her left hand came to rest on the computer keyboard.

We had a forensic computer expert take a look at the computer that Myrna was on, and her last keystroke on that computer was at 5.41 p.m.

on May 21st.

Friday, May 21st, three days before Eric discovered his parents' bodies.

The cops kept that time of death a secret.

So no matter what timeline individuals provide to us for their alibi, we now have a precise time that we can relate to as to whether or not they could have committed the crime.

Investigators pieced together Dennis and Myrna's last day of life.

Myrna was doing research on the home computer.

Dennis had left the pharmacy around 5 p.m.

It takes about an hour to drive home.

I believe she died first, and then Dennis, he was shot as he was coming in the door.

Christofferson says they were both shot once with a .22 caliber rifle.

Investigators began chasing their first intriguing lead.

the death threats to that banker who lived up the road.

They found the culprit who made the calls, but hit a dead end.

The individual that we believe was responsible for those threats would not have been able to carry out the homicides because they had a legitimate alibi at the time that Dennis and Myrna were killed.