Harris had also created a makeshift barrier and drilled a hole in a weapons case, which would have enabled him to “fire at the door from a protected position.”
Police contacted the Allegheny County bomb squad during their investigation to remove a suspected explosive device from the house, but the bomb squad later determined that there were no explosives in the home.
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However, police did discover additional ammunition and methamphetamine throughout the house. They also found a notebook with a “handwritten script” for a mass shooting.
Harris had reportedly been living at the home with a boyfriend, but neighbors told police that the boyfriend had not been present at the house for several days.
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Harris faces multiple charges, including aggravated assault, simple assault, making terroristic threats, attempted burglary, and various drug-related charges. He is being held in the Beaver County Jail on a $975,000 bond.
