8/28: CBS Mornings Plus

New details on the investigation into the shooting at a Minneapolis Catholic school. Plus, a man describes hearing the gunshots and rushing to help.

Fight breaks out in Mexican senate as session ends

A tense debate in the Mexican Senate erupted into a fight Wednesday between two of the chamber’s top politicians. Senator Alejandro Moreno of the opposition PRI grabbed Senate President Gerardo Fernández Noroña, demanding a turn to speak.