Outspoken Rihanna leads the celebrity Twitter fury as George Zimmerman is found not guilty He's an innocent man in the eyes of the law after being cleared of the murder of Trayvon Martin but George Zimmerman has found himself at the sharp end of celebrity Twitter fury. And Rihanna was one of the first stars to voice her opinion on his acquittal. She tweeted: 'This is the saddest news ever!!!#what's justice#pray4theMartinFamily.' Never one to keep her opinions to herself, Rihanna was one of the first to remark of the George Zimmerman verdict Not impressed: Rihanna gives her reaction on Twitter It wasn't long before others followed suit. Nicki Minaj, Miley Cyrus and Many Moore were amongst many who set Twitter alight in the hours following Saturday night's verdict. Zimmerman was found not guilty after a month long trial in Florida which has gripped America. Singer and actress Nicki, 30, offered the Martin family comfort: 'May God console the Martins at this time; as well as every other family that's gone though this type of injustice.' While Miley Cyrus kept it short posting: 'I feel sick. #RipTrayvonMartin'. Actress Mandy Moore added her voice with this emotional message: 'My heart is heavy...for all who knew and loved #TrayvonMartin. His life mattered. This is shameful. Singer John Legend was also moved to comment on the verdict And singer John Legend said simply: 'My heart hurts.' Zimmerman, a neighborhood watch volunteer fatally shot 17 year-old Trayvon in February 2012, but was found not guilty of second-degree murder by a court in Florida. He was also acquitted of manslaughter. The all-female jury spent 16 hours deliberating after accepting his self-defense argument. Will.I.am was certainly taking no prisoners with his tough-talking remarks. The record producer posted that the verdict was a matter of race: 'There are black people in prison serving 10 to 20 years for petty drug crimes....and Zimmerman walks for killing a young black man???' And One Tree Hill actress Sophia Bush had a lot on her mind, posting several times.