 They did not give us satisfactory answers to some very important questions. Sheetal will testify at a House hearing on Monday. Fox's Jonathan Sary reports from Butler, Pennsylvania. There's new video appearing to show... 20-year-old Thomas Matthew Crooks lurking in the background of the rally about an hour before the gunfire erupted. Sources with knowledge of a closed briefing for senators say that was around the same time that law enforcement identified Crooks as a suspicious person.