Angela Corey, the special prosecutor in the Trayvon Martin case, announced Tuesday that she would be holding a news conference in the 72 hours

The move suggests that she has decided whether to charge George Zimmerman with a crime in shooting of the unarmed Florida teenager. Zimmerman has maintained that he shot Martin in self-defense.

"At the end of the day, George Zimmerman shot Trayvon Martin and he remains free, and that's a problem," Martin family attorney Daryl Parks told MSNBC host Ed Schultz.

Parks said that investigators had been talking with witnesses and gathering information about the case.

He also said he was "very concerned" that Zimmerman would try to flee from law enforcement if Corey decides to prosecute the case. However, Parks said that law enforcement had almost certainly been keeping tabs on his whereabouts.

Watch video, courtesy of MSNBC, below:

Visit for breaking news, world news, and news about the economy