'Catfish' Murderer Austin Lee Edwards Blacked Out Windows at New Home Before Killings

We're learning more about the sickening triple murder of a 15-year-old girl's family and the possible fate she faced if her abductor would have gotten her back to his home across the country.

Real estate records reveal Austin Lee Edwards paid $80,000 for a 2-bedroom, 1-bathroom house in Saltville, VA on November 14 ... just 11 days before killing 3 people in Riverside, CA.

We spoke with neighbors who tell us Edwards almost immediately blacked out the windows of the home with car tint ... we've obtained photos showing it was next to impossible to see inside the home.

One of the neighbors tells us they had a brief conversation with Edwards, who said he chose to move there to get out of Richmond, VA. They also say Edwards wore a trench coat when he went to the water department to turn on his utilities, which they thought was odd.

As for his possessions ... we're told Edwards didn't appear to have much -- barely any furniture. We know cops have been active on the property over the last few days, removing evidence bags as they searched his home.

Cops say Edwards killed the 15-year-old girl's mother and grandparents before setting their house on fire, and then abducted the young girl. He was later caught in a police chase -- after one of the grandparents' neighbors called 911 -- which ended in a shoot-out where Edwards was killed. Cops say Edwards connected with the girl after catfishing her, pretending to be a 17-year-old boy.