February 19, 2014 11:36 am First Alert Weather: Bill Explains “Big Boom” It was the lightning bolt heard ’round the region, but what, exactly, caused it? NBC10 meteorologist Bill Henley has the answer. 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