 Now to the investigation into what happened the day of the attempted assassination of former President Donald Trump. A law enforcement source confirmed to CBS News the gunman's father called police before the shooting. And our CBS News confirmed team has learned more about agents' whereabouts during the incident, which may have impacted their response to the gunman. So take a look at these maps showing where law enforcement teams and Secret Service were in relation to former President Trump and the gunman at the time of the shooting.