Updated

U.S. Rep. Ron Barber plans to speak at several events this weekend to commemorate the two-year anniversary of the shooting of former Congresswoman Gabrielle Giffords and others at a political event.

Barber's office says he will speak at two events Saturday -- one in Green Valley and one in Tucson -- that are part of a movement called BEYOND. It was started by the family of Gabe Zimmerman, who was one of six people killed in the Jan. 8, 2011, attack. Giffords was shot in the head and later resigned from Congress. Twelve others were injured, including Barber who was Giffords' district director.

Jared Lee Loughner was sentenced in November to life in prison.

Barber also is set to speak at an interfaith service at St. Augustine Cathedral in Tucson on Sunday.