Chicago students rally for more gun control in wake of violence

Several hundred Chicago Public School students rallied downtown to remember classmates killed by gun violence this school year.

The students were joined by politicians, school officials and church leaders who are calling for stiffer gun control measures.

Since September, 20 Chicago Public Schools students have been killed by gunfire. The latest was an 18-year-old killed in a high school parking lot over the weekend.

Chicago school chief Arne Duncan says he runs into too many students who talk about "if" they grow up -- instead of "when" they'll grow up.

Duncan says he's proud of all the students who chose to attend the rally outside the Thompson Center.