"Social media firms faced anger and calls to 'step up' last night after graphic footage of an anti-Semitic gun rampage in Germany was streamed live on Twitch and watched by thousands of people. Wearing a helmet camera, the gunman filmed himself shooting two people dead and trying to force his way into a synagogue in Halle on Wednesday. Last night there were calls for social media sites to take stronger action to stop their platforms being used for violence. 'Amazon is just as much to blame as Twitch for allowing this stream online,' said Hans-Jakob Schindler of the Counter Extremism Project. 'Online platforms need to step up and stop their services being used and in turn, parent companies need to hold them accountable."