WDBJ sent a news crew to a high school football game Friday night, the first live event the station has covered since a reporter and cameraman were shot to death on the air Wednesday morning.

The shooting victims, Alison Parker and cameraman Adam Ward, were public faces in the tight-knit community of Roanoke, so the killings were on everybody's mind as Northside High faced Pulaski County in the season opener.

Fans observed a moment of silence before the game. Number 7's -- for the station's channel number -- were painted on the 30-yard-lines of the football field.

Two police officers stood by as two WDBJ journalists did a quick standup, but there were no problems. When the spot was finished, the cameraman gave the reporter a quick hug and said, "Attagirl."

Identified with 9/11 attackers

Vester Lee Flanagan fired 17 rounds from a Glock pistol in killing Parker, 24, and Ward, 27, and wounding the chamber of commerce official Parker was interviewing, the Franklin County Sheriff's Office said Friday in a press release.

Flanagan, 41, a disgruntled former station employee, identified "with individuals who have committed domestic acts of violence and mass murder, as well as the September 11, 2001 attacks on the U.S.," investigators said, based on writings he sent to ABC News and a search of his apartment.

Other details from the release: Investigators recovered two handguns, both Glocks, from the rental vehicle Flanagan crashed on I-66 in Fauquier County before killing himself. It appears he acted alone. There's no evidence to indicate his destination after the shooting.

The killing, investigators said, was "well-planned and premeditated."

Clues were found inside the rental car, a Chevrolet Sonic.

Inside the subcompact four-door sedan -- a far cry from his usual ride, a 2009 Ford Mustang -- police found a wig, a black hat, a shawl, sunglasses and a to-do list. Police also found three license plates.

Flanagan arranged to rent the car weeks before the shooting.

Victims shot in head

Parker and Ward suffered gunshot wounds to the head, the Roanoke office of the chief medical examiner said Friday. Parker was also shot in the chest, Ward in the torso.

Video later posted to social media sites belonging to Flanagan shows the gunman approaching Parker and photographer Ward as the reporter conducted a routine interview for a local story.

Photos: WDBJ journalists fatally shot; interview subject wounded Photos: WDBJ journalists fatally shot; interview subject wounded Reporter Alison Parker and cameraman Adam Ward of WDBJ-TV were fatally shot during a live interview, Wednesday, August 26, in Moneta, Virginia. Authorities identified the suspect as fellow journalist Vester Lee Flanagan II, who appeared on WDBJ-TV as Bryce Williams. Flanagan was fired from the station after working there for a year. Hide Caption 1 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded The woman being interviewed, Vicki Gardner , executive director of the Smith Mountain Lake Regional Chamber of Commerce, was shot in the back and was in surgery, said Barb Nocera, the chamber's special projects manager. Hide Caption 2 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded Adam Ward joined WDBJ in 2011 after graduating from Virginia Tech with a degree in communication and media studies, according to his Facebook page. Hide Caption 3 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded Robert Denton, one of Ward's professors, said: "Adam was a delightful person. He worked hard -- you could tell he loved what he was doing. He wasn't afraid to pitch in and do whatever was necessary for the broadcast." Hide Caption 4 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded A journalist at the Virginia station said Ward was engaged to be married to morning show producer Melissa Ott. Ward reportedly recently told her, "I'm going to get out of news. I think I'm going to do something else." Hide Caption 5 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded Alison Parker, 24, was described as a "rock star" by a colleague. Parker was a native of the southwest Virginia area. "She was living her dream," said Deon Guillory, now a reporter in Augusta, Georgia. Hide Caption 6 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded Parker's boyfriend, station anchor Chris Hurst, said, "She was the most radiant woman I ever met. And for some reason she loved me back. She loved her family, her parents and her brother." Hide Caption 7 of 8 Photos: WDBJ journalists fatally shot; interview subject wounded Alison Parker often reported on the area chamber of commerce -- as she was doing the day she died -- with a knack for finding the human stories in business news. "She cared about her stories and she took a genuine interest in what people said," freelance colleague Becky Blanton said. "She would look for personal details and ask the questions others didn't ask."

Hide Caption 8 of 8

Ward's back is to the gunman. Parker is in profile, and the interviewee is facing the gunman. The shooter appears to take his time aiming the gun, presenting it and then withdrawing it, before composing the angle of his video.

He opens fire on Parker first. Both Parker and the interview subject scream, and the reporter is seen running away. It's unclear if she had been wounded at that point.

Ward's camera briefly captured the shooter pointing the gun down at him.

History of troubled mental state

The warning signs about Flanagan stretch back at least as far as 2000, 12 years before he was hired at -- and fired from -- WDBJ, the Roanoke TV station where Parker and Ward worked. Flanagan had difficulty with employers multiple times.

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• In 2000, he was fired from WTWC in Tallahassee, Florida. The station said it was for "poor performance," "misbehavior with regards to co-workers" and his "use of profanity on the premises." Flanagan alleged a producer called him a "monkey," and because he complained, the station retaliated.

"He was very angry and troubled by a lot of things that had happened to him at work," said Marie Mattox, the attorney who represented him in a suit he filed against the station. "And I was concerned about just his mental status and whether he needed counseling."

CNN couldn't find any indication that he did. (The suit was settled).

• Flanagan bounced around to a number of news stations, landing at WDBJ in Virginia in 2012. There, his records listed run-ins with co-workers and said he was a poor performer, leading his bosses to refer him to the company's employee assistance program.

"We made it mandatory that he seek help from our employee assistance program. Many companies have them. They provide counseling and other services, and we made it mandatory that he do that," WDBJ's general manager Jeff Marks said.

The final warning for the reporter came in December 2012, and he was fired in February 2013. Before police walked him out of the building, Flanagan handed his manager a small wooden cross and said, "You'll need this."

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• Earlier this summer, Flanagan was involved in a road rage incident. Brandon Foster posted a video of the July 6 encounter on YouTube after Wednesday's shooting. "I called this man out at a red light for driving like a maniac," Foster said. "He then followed me to my destination, driving recklessly, and stopping traffic to continue the argument." There was no violence, and no charges were filed.

• After the shooting Wednesday, Flanagan sent a disjointed 23-page fax to ABC News chronicling what be perceived as grievances dating back to first grade. He said he had been targeted his whole life by white females and black males. He cited seemingly innocuous comments as discriminatory, such as "an intern asking where I would 'swing by' for lunch."

"The average person would not perceive those everyday comments as insulting or injustices," said Mary Ellen O'Toole, a former FBI profiler. "But clearly, he does. His belief system is so rigid that there'd be no way you'd get through to him. No way."