Vester Lee Flanagan - aka Bryce Williams - the gunman who killed two journalists during a live broadcast in Virginia has attempted suicide and is "in a very critical condition", media report.

In a stunning update, the gunman - has tweeted the moment he killed the two news people... (video has been removed from his twitter and facebook account which are now suspended)

The video can be found here (warning - extremely disturbing)

The reporter knew nothing until the first shot went off!!

Suspect aims gun at Alison Parker as she conducts interview; she doesn't even notice. Horrifying. pic.twitter.com/eWTIpLjsoM

— reported.ly (@reportedly) August 26, 2015

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Update: Shooter believed to be "disgruntled employee"

As The Daily Beast reports,

In the tweets, Flanagan hinted at possible motives for the shooting. He tweeted about filing an Equal Employment Opportunity Commission complaint and alleged that the reporter had made racist comments. "They hired her after that???" he tweeted. The slain producer, he claimed, complained to HR about him after working together one time. His final text tweet boasted about filming the attack.

ABC News said it recieved a 23-page fax from Flanagan and turned it over to authorities.

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While Americans are becoming numb to inner city violence, shooting sprees, and lone gunmen at military installations, the following stunning clip - from live TV at the Bridgewater Plaza in Bedford County, Virginia - of a reporter and photographer being shot and killed is likely to raise the public's awareness of the underlying chaos occurring under the surface in America every day...