Pennsylvania July 31, 2020 4:55 pm No Cause Yet in Massive Chester County Apartment Complex Inferno No cause has been determined yet in a blaze that ripped through a block-long apartment building in Chester County, and hurt four residents and three firefighters on Thursday night. US & World Videos 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus