 He worked at the Bethel Park Skilled Nursing and Rehabilitation Center. He passed a background check. As people have pointed out, he at one point registered as a Republican, but donated $15 to a Democratic-led organization, an ACT Blue group, in 2021. He was found with a remote receptor or a detonator. A suspicious device was then found in his car. It's being analyzed by the FBI, but it appears to be explosives.