Investigators in Blacksburg are not yet talking about exactly how Nicole Lovell, 13, and David Eisenhauer, 18, met but according to her mother, the two met online.
U.S. Attorney Rod Rosenstein told ABC2 in most cases like this, at least the initial contact between a suspect and victim is made on an open platform.
He said those are the sites that leave trail or record of the communication which helps detectives further their investigation.
Rosenstein also said the murder case out of Virginia is the kind of case he is seeing more and more.
"We see children being exposed to a lot more danger than they were in the past. One of the reasons is that they don't have to go down to the park and worry about some criminal in the park. The criminals are getting directly into their bedrooms through their electronic devices. That's the problem we face these days is that there's really nowhere a child can be fully protected if they have a device that connects to the internet and their parents don't know what they're doing on that device," he said.
Rosenstein added the other problem is that some parents give their children too much privacy on their devices. He said with the kinds of access kids have today, it is important to constantly monitor them.