April 25, 2019 8:34 am Man Critically Hurt in Mystery Explosion Federal and state investigators are in search for answers after an explosion left a man critically hurt in in Claymont, Delaware, late Wednesday night. US & World Videos 11:16 Another campus protest in Philly: The Lineup 0:47 What advice did Keith Jones give to Arcadia University's graduating class? ‘Be bold' 1:11 Cabrini University graduates final class with Kylie Kelce addressing commencement 0:38 University of Pennsylvania adds extra security for 2024 commencement 0:22 Suspect sought after credit card skimmer found at Dollar General