the aftermath of the independent review into the shooting death of officer william corbett back in january last year. the police commissioner recommended some major changes to the city's police academy training program. academy officials are now using what they called diamond standard training. >> we have implemented these training changes to reinforce those lessons learned, and it is about the officers' gaining confidence, recognizing the dangers involved, community outreach, and working together as a team. >> once the training is complete, the hope is that officers will be better able to communicate in volatile situations. >> some big changes coming to you. we will give you a preview. >> while it is improving what seems to be on a downward spiral in baltimore city, plus -- >> it is primary day in michigan and arizona. in washington, there are allegations of dirty campaign tricks in the race for the gop nomination. >> doppler shows a big storm in the middle of the country into in this way with what weather and even some wintry weather in the forecast. details coming up here right now, sti