(SUN-SENTINEL) — Broward Sheriff Scott Israel refused Sunday to resign over missteps in the Parkland school shooting, saying in a CNN interview that he had provided “amazing leadership” and casting blame primarily on a single school sheriff’s deputy who failed to confront the killer.

Appearing on CNN’s State of the Union with Jake Tapper, the sheriff said his agency was still investigating how multiple warnings about shooter Nikolas Cruz were missed and whether additional sheriff’s deputies failed to enter Marjory Stoneman Douglas High School when they thought the shooter was still there.

After Tapper asked about a November tip to BSO that Cruz could be a school shooter in the making, Israel said his department was looking into what happened and had placed a deputy involved on restricted duty.

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