Company documents point to years of concern about Vester Lee Flanagan, the man who shot two of his former colleagues on live television outside Roanoke, Virginia.
His own manifesto, sent to an American network, insists he'd been repeatedly discriminated against.
Our Washington correspondent Priscilla Huff reports:
IN: "WDBJ television...
OUT: SOC
DUR: 50
POT: 32
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