It it possible, just possible that maybe (or maybe not) the camera man took that angle on purpose but the female news anchor wasn't told the race of the armed citizen. If you watch the clip again she doesn't seem to be reading some prepared when she said that. It seemed a spur of the moment based on what she saw in the clip taken in AZ.
Don't see it at MSNBC. Attacks and exaggerations ya, blatant intentional lies, nope.
Anyways Fox and MSNBC are the Ren and Stimpy show of "news". There for entertainment etc. purposes then anything else.