(AURN) -- Neighborhood watch volunteer George Zimmerman was ordered back to jail within 48 hours after a Florida judge revoked his bond Friday. Zimmerman was charged with 2nd degree murder in the killing of Trayvon Martin, an un-armed African-American teen in Sanford Florida. Martin's family attorney, Benjamin Crump held a press conference Friday calling Zimmerman's credibility into question. "We fully expect that the special prosecutor will make George Zimmerman's credibility be front and center in this entire case," Crump said. "And whatever dishonesty that comes forth by George Zimmerman that they can prove, you can best believe it will be the issue of this case and rightfully so."

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