The FBI said Friday that it failed to follow “protocols” when it received a tip earlier this year about the teenager accused of killing 17 in a mass shooting at a South Florida high school.

In January, person close to the accused shooter, 19-year old Nikolas Cruz, called the FBI’s public tipline and raised concerns about his gun ownership, desire to kill and warned of a possible school shooting.

But the FBI never reported the tip to its Miami field office or investigated the claim, the bureau said Friday.

“Under established protocols, the information provided by the caller should have been assessed as a potential threat to life,” the FBI said in a statement. “The information then should have been forwarded to the FBI Miami field office, where appropriate investigative steps would have been taken.

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