Were they disappointed that we didn't riot?

That was the sentiment of some who took to Twitter to give their accounts of the peaceful protests against George Zimmerman's acquittal that took place in Los Angeles, New York, Chicago, Oakland, Calif., and other cities across the country on Sunday.

While the demonstrations focused on frustration with the verdict, Twitter accounts reflected what was seen as another instance of injustice: inadequate media coverage of the events, and especially of the reports of those who said that Los Angeles police were firing rubber bullets at the crowds.

Some of those accounts and reactions: