Trump fires off bizarre late night tweet blaming FBI's Russia investigation for Parkland massacre
President Donald Trump speaks in Ohio while the Dow Jones plummets in historic drop. Image via screengrab.

President Donald Trump fired off a rare late-night tweet on Saturday blaming the FBI's attention to Russian meddling in the 2016 election for the massacre at Marjory Stoneman Douglas High School on Wednesday.

"Very sad that the FBI missed all of the many signals sent out by the Florida school shooter. This is not acceptable," Trump wrote. "They are spending too much time trying to prove Russian collusion with the Trump campaign - there is no collusion. Get back to the basics and make us all proud!"

This week, special counsel Robert Mueller announced a string of indictments related to Russian meddling in the 2016 election, showing a surprising level of familiarity with the Russian operation.

Trump followed up with a second tweet that appeared to address criticisms that the president's claims of vindication from the Mueller indictments are unfounded.

"General McMaster forgot to say that the results of the 2016 election were not impacted or changed by the Russians and that the only Collusion was between Russia and Crooked H, the DNC and the Dems. Remember the Dirty Dossier, Uranium, Speeches, Emails and the Podesta Company!" said the president.

In fact, nothing in Mueller's indictments precludes further charges against Americans associated with Russia's "translator project" nor does it provide any exculpatory evidence on Trump and his campaign.