Four police officers shot in four U.S. cities

Four officers were shot in four cities across the U.S. on Sunday. In San Antonio, a gunman killed police Detective Benjamin Marconi after the suspect walked up to his patrol car and shot him through the glass. The San Antonio Police Department has released video of the suspect and is asking the public for its help in catching him. A police sergeant in St. Louis was shot and wounded while stopped at an intersection. A Gladstone, Mo., police officer was shot during a routine traffic stop, and a Sanibel, Fla., officer was shot during a confrontation with a teenage suspect who ran from a traffic stop. Both were only wounded.