U.S. Sen. Dick Durbin (D-Ill.) says he will hold a hearing on so-called "stand your ground" laws.
About 30 states have some form of the law, which gives a person the right to use deadly force to protect themselves if they feel their life is in danger.
A Florida version of "stand your ground" played a role in the trial of George Zimmerman, who was acquitted in the shooting death of teenager Trayvon Martin.
Durbin is an Illinois Democrat and member of the Senate Judiciary Committee.
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