DOJ declines to prosecute George Zimmerman.

Federal civil rights charges are difficult to press, let alone get convictions for. In its press release about the decision, the lack of charges against Zimmerman are said to be a result of being unable to meet the standard of proving that the "defendant knew his acts were unlawful, and committed those acts in open defiance of the law.".... The Department of Justice also opened a civil rights investigation into each of those cases [Michael Brown and Eric Garner]. It declined to press charges against former Ferguson police officer Darren Wilson in the case of the Michael Brown shooting. The decision regarding the Eric Garner case is still open. http://cbsn.ws/1BPCRW0