There has been a shooting at the headquarters of YouTube in San Bruno, California. The local police have indicated that several wounded (so far four confirmed) cases have fallen, one of which is in critical condition.
YouTube recently changed a number of rules about showing and promoting guns on the video channel. We now assume that this has nothing to do with the shooting.
The shooting seems remarkably enough to have been performed by a woman who has since died. According to reports, she has put her hand to herself, but whether she has been stymied by the police or committed suicide before is not clear. What the motive of the female suspect would have been at this moment does not know anyone.