Gunman described as 'loner,' had few contacts in his phone
It appears the shooter, 20-year-old Thomas Matthew Crooks, was a "loner" and didn't have a lot of contacts in his phone, FBI Director Christopher Wray told the House Judiciary Committee.
"A lot of people describe him as a loner. That does kind of fit with what we're seeing in his devices, you know, his list of contacts, for example, is very short, compared to what you would normally see from most people. Doesn't appear to be a whole lot of interaction between him, you know, face-to-face or digital, with a lot of people," Wray said.
The FBI has conducted over 400 interviews, with "many more to conduct," he said.
-ABC News’ Luke Barr