 Violence in mass shootings often increase in the summer months, with more people gathering for social events, teens out of school, and hotter temperatures. Three boys ages 8, 7, and 5 were also wounded in the shooting in Chicago, which police say resulted from a potential personal dispute. I'm Lisa DeWire. President Biden took to the radio today to state his case for staying in the presidential race. 90 minutes on stage does not erase what I've done for three and a half years.