*'''9:00am'''—Butler ESU holds a briefing for the local SWAT and Sniper units from Butler County, Beaver County, and Washington County providing security for the event.
*'''9:00am'''—Butler ESU holds a briefing for the local SWAT and Sniper units from Butler County, Beaver County, and Washington County providing security for the event.
:*According to attendees of the briefing, no Secret Service or other federal law enforcement is present for this briefing.
:*According to attendees of the briefing, no Secret Service or other federal law enforcement is present for this briefing.
+
[[File:Crooks bike and backpack.PNG|right|250px|thumb|Crooks' bicycle and backpacks.]]
*'''10:30am'''—Two local law enforcement snipers are in position on the second floor inside the American Glass Research (AGR) building.
*'''10:30am'''—Two local law enforcement snipers are in position on the second floor inside the American Glass Research (AGR) building.
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[[File:Crooks bike and backpack.PNG|right|250px|thumb|Crooks' bicycle and backpacks.]]
*'''5:10pm'''—Thomas Matthew Crooks is first observed by one of the snipers (AGR sniper 1) at the AGR building.
*'''5:10pm'''—Thomas Matthew Crooks is first observed by one of the snipers (AGR sniper 1) at the AGR building.
*'''5:14pm'''—AGR sniper 1 takes the below pictures of Crooks.
*'''5:14pm'''—AGR sniper 1 takes the below pictures of Crooks.