It was just another college party until the floor gave out under dozens of people. Police in South Carolina said 30 people were injured when the floor collapsed during a party for Clemson University's Homecoming weekend. Videos posted to social media show the terrifying scene. Those who were fortunate enough not to fall through the floor were stunned after seeing the massive hole that was left by the collapse. InsideEdition.com's Mara Montalbano (https://twitter.com/MaraMontalbano) has more.