Hundreds of people gathered Sunday at prayer vigils and in church, after three Black people were killed in Florida by a 21-year-old man who authorities say left behind white supremacist ramblings that read like “the diary of a madman.” Republican Gov. Ron DeSantis was loudly booed as he addressed the vigil. Julia Manchester says DeSantis is a polarized figure so voters will either continue to love him or hate him after his shooting response. Watch #MorningInAmerica: newsnationnow.com/joinus #DeSantis #Jacksonvilleshooting #DollarGeneralshooting Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Adrienne Bankert. Weekdays starting at 7a/6C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Iki...