PITTSBURGH, Pa. – (WPXI) – Allegheny County Sheriff’s deputies were involved in an active shootout with a suspect at North Mathilda Street and Broad Street in the city’s Garfield neighborhood. The Allegheny County sheriff told Channel 11 that the suspect, William Hardison, Sr., was pronounced dead at 5:08 p.m., nearly seven hours after the shootout started. This happened just blocks away from UPMC Children’s Hospital. Many roads were closed and people were advised to avoid the area. Court documents show that an eviction notice was scheduled to be served at the home at 4817 Broad Street at 10:30 a.m. Wednesday. Doorbell camera shows officers at the scene before shots were fired. Neighbors told Channel 11 Hardison, Sr. was a squatter at the home. Sources said Hardison, Sr. believed he was a sovereign citizen, meaning he thought he was exempt from the law. Pittsburgh Public Schools officials said Pittsburgh Montessori School and Obama Academy were on lockdown. Police said two drones put up by law enforcement were shot down by the suspect and over 100 shots were fired. A sheriff’s deputy suffered a head injury from diving for cover while the suspect was shooting, officials said. People who were sheltering in place were asked to call 911 and provide their locations so that police could evacuate them from their homes.