Butler County Sheriff Michael Slupe offered more details on the local law enforcement encounter with Thomas Crooks before he shot former President Trump on Saturday during a rally in Pennsylvania.

Slupe told Fox News Butler Township police received tips about a suspicious person outside the Trump rally and made efforts to find that person. Officers from Butler Township police started searching the area and eventually figured out that there was someone on the roof of the building. One officer helped another onto the roof. The second officer started to climb up on the roof and saw Crooks, who then pointed a gun at the officer.

At that point, the Butler Township officer dropped off the roof to avoid being shot. Crooks opened fire on Trump shortly afterwards. Moments later, a U.S. Secret Service counter sniper shot and killed Crooks.

The building Crooks fired from was a "rally point" for one of the local counter sniper teams, according to a federal law enforcement official familiar with the security plans.

The source also said that a team was actually stationed in, or near, the building. There were four counter sniper teams at the Trump rally in Butler, Pennsylvania, on Saturday, including two from the Secret Service and two from local law enforcement.
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