US President Donald Trump walks to Marine One prior to departure from the South Lawn of the White House in Washington, DC, February 16, 2018, as he travels to Florida for the weekend. / AFP PHOTO / SAUL LOEB        (Photo credit should read SAUL LOEB/AFP/Getty Images)

Trump slams FBI's handling of tip on shooter

President Trump lashed out at the FBI on Twitter, saying the organization's failure to follow up on information about the Parkland, Florida school shooter was due time spent on the Russia investigation.

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