Attorney: Zimmerman tired, frightened

SANFORD, FL - APRIL 12: George Zimmerman (C) appears for a bond hearing at the John E. Polk Correctional Facility April 12, 2012 in Sanford, Florida. Zimmerman was charged yesterday with second degree murder in the fatal shooting of 17-year-old Trayvon Martin who died February 26, 2012. (Photo by Gary Green/The Orlando Sentinel-Pool/Getty Images)

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    Attorney: Zimmerman tired, frightened

Defense attorney Mark O'Mara talks to CNN's Wolf Blitzer about how George Zimmerman is doing since being arrested.