The two journalists killed during a live TV report were both shot in the head.
Reporter Alison Parker, 24, and cameraman Adam Ward, 27, died of gunshot wounds to the head and body, a Virginia coroner said.
Their former colleague Vester Flanagan shot himself when police caught up with him three hours from the scene of the killings.
This picture shows the reaction in an ABC newsroom when it was confirmed a reporter and cameraman were shot dead during a live broadcast.
Vicki Gardner, who was being interviewed live on-air when a gunmen shot two journalists has been released from hospital.
In a 23-page fax, Vester Flanagan said he was a "human powder keg waiting to go boom" before he slayed Alison Parker and Adam Ward.
Police confirmed Vester Flanagan shot himself hours after killing two former colleagues Alison Parker and Adam Ward on live TV.