Tipster told FBI that Florida shooting suspect Nikolas Cruz was ‘going to explode’

The person who called an FBI tip line in January said Nikolas Cruz made increasingly alarming statements after his mother died last fall, adding, "I know he's, he's going to explode."
The FBI said last week that the information from the call was never passed along to agents in Miami "where appropriate investigative steps would have been taken."
A transcript of the January 5 call, obtained by NBC News on Friday, revealed that the female caller, described by the FBI only as a person close to Cruz, never said that he planned to shoot up a school. 

Source: Yahoo News