MICHAELA PEREIRA, CNN ANCHOR: Half past the hour. We're following breaking news from Pennsylvania. The search is on for multiple shooters who opened fire at a backyard party. They killed at least five people outside of Pittsburgh. Police say four women and a man were fatally shot overnight; three others remain hospitalized. It is unclear what set off the shooting. Authorities say ballistics indicate there were at least two shooters. At least two are dead after heavy flooding slams the Southeast. A driver in Louisiana died after his car slid off into the road, plunging into raging floodwaters. A flood emergency has been declared in sixteen parishes. At least 14 inches of rain fell in some areas, forcing over 100 roads to close. One man was also killed in Texas after his kayak capsized. U.S. forces taking out an ISIS-controlled chemical weapons plant in Northern Iraq using the information from an ISIS operative captured some three weeks ago. U.S. officials tell CNN ISIS was using this facility to produce mustard gas. The operative is considered a key leader in ISIS chemical weapons program. More strikes could follow. Democrats in Florida are breaking out their score cards. Who won last night's debate? What were the deciding factors? You're going to hear from voters, next.
Multiple Shooters Opened Fire in Pennsylvania