a popular time for motorcycle club gatherings police are taking the threat seriously. john and christine according to the bulletin gang members believe police shot their quote fellow brothers at this waco event. >> evan thanks so much. it is still not clear exactly what ignited that deadly shootout in waco. police recovered hundreds of weapons from the crime scene at the twin peaks restaurant there. reports that a parking space dispute triggered the violence. someone had their foot run over. a waitress in the restaurant tells cnn it was more complicated than that. >> contrary to what everyone is saying, it wasn't just over a parking space. it has been a long issue between bandidos and cossacks for a while while. >> waco police are under fire accused of arresting innocent bystanders in the aftermath of the shootout. police deny that charge