Shooter identified as Thomas Matthew Crooks.

Suspect did not have ID, testing DNA for confirmation
While law enforcement said at a press conference late Saturday that they believe they know who carried out the shooting, they are still not naming the individual.

Officials said they are also doing DNA testing, because the suspected shooter did not have ID.

"It's a matter of doing biometric confirmations," FBI Special Agent in Charge Kevin Rojek said. "So, there was no identification on the individual, for example, so we're looking at photographs right now and we're trying to run his DNA and get biometric confirmation."

The shooter's name will be released once there is an official confirmation, he said.