Deborah Roberts

And he goes, hey, we also have a last name for you.

Koberger.

And he drives a white Hyundai Elantra.

Once we had his name at that point, immediately we knew that he was in Pennsylvania.

When did the surveillance on him start?

Immediately.

He only left the house three times.

And he was noticed to be wearing rubber gloves all the times he had left the house.

They need a way to test that DNA.

So they pull the trash.

The agent on scene had made contact with the trash company to be able to ride the truck to collect the trash.

They sort anything that could contain DNA.

They found an item in the trash that had male DNA that comes back and says, we have DNA in this trash that is the father of the DNA left on the knife sheet.

once we had the DNA paternity match from the trash poll.

From a Q-tip specifically.

Yeah.

At that point, you have what you need to get an arrest warrant for Brian Koberger.

And news of an arrest spreads fast.

The big story on Action News tonight is a major break in the murder of four Idaho college students.

nearly seven weeks after the brutal murders, an arrest is finally made.