Yes they should fire him.
Will they fire him? No.
And, their “out”, will be that, when Brian Ross and Stefanopolous (sp?) were chatting about this, Ross did say that someone with that name was a member of the Tea Party, but they didn’t know if it was the same person.
We all know what they were trying to do, but, if they go back and review the exact words, they will say that they said that it was not confirmed that it was the Tea Party guy who was the shooter.
The key is to get the words "Tea Party" and the event into the same sentence and allow the listener to make the association.
They did it here, they did it with the Gabrielle Giffords shooting, they did it with the airplane that flew into a building, it's SOP.
Never mind the fact that EVERY ONE of those events was in fact perpetrated by a leftist. The damage was done, deliberately.