Virginia Shooting Suspect Has Died

"Minutes later, the suspect vehicle ran off the road and crashed," the statement said. "The troopers approached the vehicle and found the male driver suffering from a gunshot wound."

Flanagan used to work for Roanoke-based TV station WDBJ, where the slain journalists, reporter Alison Parker, 24, and cameraman Adam Ward, 27, also worked. Flanagan went by the name Bryce Williams on air, multiple outlets report.

A Twitter account associated with Williams' name was suspended Wednesday shortly after two videos of the killings were posted. The same Twitter account also tweeted out several messages that apparently referenced the victims.

Jeff Marks, the general manager of WDBJ, told CNN in an on-air interview that Flanagan "did make accusations against some people some time ago."

"You can never expect someone to come back and act on those issues that were so old," Marks said. "What do you do? Do you imagine that everybody who leaves the company under difficult circumstances is going to take aim?"

Someone claiming to be Williams sent a 23-page fax  to ABC News some time between Tuesday night and Wednesday morning, the network reported. In the fax, the sender says the shooting  at a Charleston, South Carolina, church earlier this summer pushed him over the edge.

"Why did I do it? I put down a deposit for a gun on 6/19/15. The Church shooting in Charleston happened on 6/17/15…” the fax said. “What sent me over the top was the church shooting. And my hollow point bullets have the victims’ initials on them."

Several outlets are reporting that Flanagan obtained the 9mm Glock pistol legally , and that he passed background checks to get it.

In the fax to ABC, he also says he's a victim of racial discrimination and sexual harassment, and that he has been targeted for being a gay black man."The church shooting was the tipping point…but my anger has been building steadily...I’ve been a human powder keg for a while…just waiting to go BOOM!!!!” 

Vicki Gardner, the executive director of the Smith Mountain Lake Regional Chamber of Commerce, who Parker was interviewing at the time of the incident, was shot in the back and is undergoing surgery, CNN reports . Franklin County Sheriff Bill Overton said at the press conference that her injuries are not life-threatening.

Sebastian Murdock, Andy Campbell and Jenna Amatulli contributed reporting.