Jeff Marks, the general manager at WDBJ-TV, said the former reporter who is suspected of killing two of the station's journalists "was an unhappy man."

Vester Lee Flanagan II, 41, of Roanoke, is believed to have fatally shot WDBJ7 reporter Alison Parker and 27-year-old photographer Adam Ward during a live report this morning. 

A woman who was being interviewed was wounded and is in stable condition. Flanagan previously worked as a reporter under the name Bryce Williams. 

(Full updates on the story, here.)

Marks said after numerous incidents involving Flanagan's "anger," he was dismissed from the station. 

"Vester was an unhappy man," said Marks, recalling that Flanagan had "some talent" as a reporter, but had been out of the business for a while when he was hired in 2012.

Marks said Flanagan quickly developed a reputation as someone who "was difficult to work with." 

"He was sort of looking out for people to say things that he could take offense to," said Marks.

When Flanagan was dismissed in 2013, Marks said Flanagan did not take the news well and police officers were called in to escort him from the premises.

Flanagan allegedly posted his own cell phone video of the shooting on both Facebook and Twitter. Both of his accounts have been suspended.

He alleged in a series of tweets that Parker made racist remarks to him and that Ward "went to HR on me after working with me one time!!!."

Marks said on "Happening Now" that the Equal Employment Opportunity Commission dismissed Flanagan's complaint.

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