March 4, 2014 7:28 pm Deadly Explosion: What Went Wrong? Police continue to investigate the cause of a gas explosion that killed one person and injured at least seven others. NBC10’s Na’eem Douglas has the details. US & World Videos 9:46 Another NJ earthquake: The Lineup 2:54 Penn leaders reiterate to pro-Palestinian protesters that they need to pack up camp 1:44 Pro-Palestinian protesters remain on UPenn's campus despite warnings to disband 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