A reporter and a cameraman have been shot dead live on air during a TV outside broadcast in the United States.24-year-old Alison Parker and 27-year-old Adam Ward were attacked as they filmed a morning interview at a shopping complex in Bedford County in the state of Virginia.US shooting suspect posts video of incident on social media t.co/cQj3nvSpUc pic.twitter.com/lBEw6qVLuI— FRANCE 24 (@FRANCE24) August 26, 2015The gunman was identified locally as Vester Lee Flanagan.He was been found with gunshot wounds after a police manhunt and has been taken to hospital.Sources say he was also known as Bryce Williams, a former employee of the television station where the victims also worked.Speculation over the motiveThe television station, WDBJ7, says it has no information about a possible motive for the killings.However, there is speculation in the media that Flanagan may have held a personal grudge against Alison Parker and Adam Ward.